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linux/fs/f2fs/debug.c

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f2fs: adjust kernel coding style As pointed out by Randy Dunlap, this patch removes all usage of "/**" for comment blocks. Instead, just use "/*". Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-29 13:28:09 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: replace the debugfs_root with f2fs_debugfs_root This minor change for the naming conventions of debugfs_root to avoid any possible conflicts to the other filesystem. Signed-off-by: Younger Liu <younger.liucn@gmail.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> [Jaegeuk Kim: change the patch name] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 21:09:29 +08:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix endian conversion bugs reported by sparse This patch should resolve the bugs reported by the sparse tool. Initial reports were written by "kbuild test robot" managed by fengguang.wu. In my local machines, I've tested also by running: > make C=2 CF="-D__CHECK_ENDIAN__" Accordingly, I've found lots of warnings and bugs related to the endian conversion. And I've fixed all at this moment. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-28 16:12:41 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix typo Fix typo and some grammatical errors. The words "filesystem" and "readahead" are being used without the space treewide. Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-08-06 23:22:50 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: count the number of inmemory pages This patch adds counting # of inmemory pages in the page cache. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-05 17:18:15 -08:00
f2fs: show the number of writeback pages in stat This patch adds the # of writeback pages in stat info. Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-30 16:43:11 -08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: use atomic for counting inode with inline_{dir,inode} flag As inline_{dir,inode} stat is increased/decreased concurrently by multi threads, so the value is not so accurate, let's use atomic type for counting accurately. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-08 19:08:20 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: introduce NODE_MAPPING for code consistency This patch adds NODE_MAPPING which is similar as META_MAPPING introduced by Gu Zheng. Cc: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-21 18:51:16 +09:00
f2fs: add help function META_MAPPING Introduce help function META_MAPPING() to get the cache meta blocks' address space. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-20 18:37:04 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add nat/sit entries into status This patch adds NAT/SIT entry informations. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-07 11:09:37 -08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add block count by in-place-update in stat info This patch adds block count by in-place-update in stat. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-24 02:16:54 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: adjust kernel coding style As pointed out by Randy Dunlap, this patch removes all usage of "/**" for comment blocks. Instead, just use "/*". Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-29 13:28:09 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: check the use of macros on block counts and addresses This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-23 11:23:01 -07:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: check the use of macros on block counts and addresses This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-23 11:23:01 -07:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: adjust kernel coding style As pointed out by Randy Dunlap, this patch removes all usage of "/**" for comment blocks. Instead, just use "/*". Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-29 13:28:09 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: introduce the number of inode entries This patch adds to monitor the number of ino entries. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-06 15:16:04 -08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: check the use of macros on block counts and addresses This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-23 11:23:01 -07:00
f2fs: avoid variable length array Instead of using variable length array, this patch let preallocate memory for them. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-02-10 16:44:29 -08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: check the use of macros on block counts and addresses This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-23 11:23:01 -07:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: check the use of macros on block counts and addresses This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-23 11:23:01 -07:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: check the use of macros on block counts and addresses This patch cleans up the existing and new macros for readability. Rule is like this. ,-----------------------------------------> MAX_BLKADDR -, | ,------------- TOTAL_BLKS ----------------------------, | | | | ,- seg0_blkaddr ,----- sit/nat/ssa/main blkaddress | block | | (SEG0_BLKADDR) | | | | (e.g., MAIN_BLKADDR) | address 0..x................ a b c d ............................. | | global seg# 0...................... m ............................. | | | | `------- MAIN_SEGS -----------' `-------------- TOTAL_SEGS ---------------------------' | | seg# 0..........xx.................. = Note = o GET_SEGNO_FROM_SEG0 : blk address -> global segno o GET_SEGNO : blk address -> segno o START_BLOCK : segno -> starting block address Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-23 11:23:01 -07:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix typo Fix typo and some grammatical errors. The words "filesystem" and "readahead" are being used without the space treewide. Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-08-06 23:22:50 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix wrong memory footprint statistics in debugfs Our value of memory footprint statistics showed in debugfs is not calculated correctly. Fix it in this patch. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-10 20:09:52 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix wrong memory footprint statistics in debugfs Our value of memory footprint statistics showed in debugfs is not calculated correctly. Fix it in this patch. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-10 20:09:52 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix wrong memory footprint statistics in debugfs Our value of memory footprint statistics showed in debugfs is not calculated correctly. Fix it in this patch. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-10 20:09:52 +08:00
f2fs: update memory footprint information This patch adds missing memory usages, and splits them in detail. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-10 21:37:36 -08:00
f2fs: reuse inode_entry_slab in gc procedure for using slab more effectively There are two slab cache inode_entry_slab and winode_slab using the same structure as below: struct dir_inode_entry { struct list_head list; /* list head */ struct inode *inode; /* vfs inode pointer */ }; struct inode_entry { struct list_head list; struct inode *inode; }; It's a little waste that the two cache can not share their memory space for each other. So in this patch we remove one redundant winode_slab slab cache, then use more universal name struct inode_entry as remaining data structure name of slab, finally we reuse the inode_entry_slab to store dirty dir item and gc item for more effective. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-29 15:56:18 +08:00
f2fs: introduce the number of inode entries This patch adds to monitor the number of ino entries. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-06 15:16:04 -08:00
f2fs: introduce struct inode_management to wrap inner fields Now in f2fs, we have three inode cache: ORPHAN_INO, APPEND_INO, UPDATE_INO, and we manage fields related to inode cache separately in struct f2fs_sb_info for each inode cache type. This makes codes a bit messy, so that this patch intorduce a new struct inode_management to wrap inner fields as following which make codes more neat. /* for inner inode cache management */ struct inode_management { struct radix_tree_root ino_root; /* ino entry array */ spinlock_t ino_lock; /* for ino entry lock */ struct list_head ino_list; /* inode list head */ unsigned long ino_num; /* number of entries */ }; struct f2fs_sb_info { ... struct inode_management im[MAX_INO_ENTRY]; /* manage inode cache */ ... } Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-11-18 11:18:36 +08:00
f2fs: update memory footprint information This patch adds missing memory usages, and splits them in detail. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-10 21:37:36 -08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: use list_for_each_entry rather than list_for_each_entry_safe We can do this, since now we use a global mutex, f2fs_stat_mutex to protect its list operations. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [Jaegeuk Kim: add description] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-05-14 20:06:46 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: use list_for_each_entry rather than list_for_each_entry_safe We can do this, since now we use a global mutex, f2fs_stat_mutex to protect its list operations. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [Jaegeuk Kim: add description] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-05-14 20:06:46 +08:00
f2fs: add device name in debugfs In file status, it can't distinguish between different devices. So add device name to do this function. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-02-01 15:00:30 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add device name in debugfs In file status, it can't distinguish between different devices. So add device name to do this function. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-02-01 15:00:30 +08:00
f2fs: update f2fs partition info about SIT/NAT layout Update partition info output under debug FS to reflect segment layout correctly. Signed-off-by: Huajun Li <huajun.li.lee@gmail.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-12-31 13:59:09 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add the number of inline_data files to status info This patch adds the number of inline_data files into the status information. Note that the number is reset whenever the filesystem is newly mounted. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-11-26 11:08:57 +09:00
f2fs: add stat info for inline_dentry inodes This patch adds status information for inline_dentry inodes. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-10-13 20:00:16 -07:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: show counts of checkpoint in status This patch shows the counts of checkpoint in f2fs' status. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-02-13 15:12:29 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: clean checkpatch warnings Fixed a variety of trivial checkpatch warnings. The only delta should be some minor formatting on log strings that were split / too long. Signed-off-by: Chris Fries <cfries@motorola.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-17 14:44:39 -06:00
f2fs: show the number of writeback pages in stat This patch adds the # of writeback pages in stat info. Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-30 16:43:11 -08:00
f2fs: add delimiter to seperate name and value in debug phrase Support for f2fs-tools/tools/f2stat to monitor /sys/kernel/debug/f2fs/status Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-13 10:34:18 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add delimiter to seperate name and value in debug phrase Support for f2fs-tools/tools/f2stat to monitor /sys/kernel/debug/f2fs/status Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-13 10:34:18 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add delimiter to seperate name and value in debug phrase Support for f2fs-tools/tools/f2stat to monitor /sys/kernel/debug/f2fs/status Signed-off-by: Changman Lee <cm224.lee@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-01-13 10:34:18 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add nat/sit entries into status This patch adds NAT/SIT entry informations. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-07 11:09:37 -08:00
f2fs: remove unnecessary threshold The NM_WOUT_THRESHOLD is now obsolete since f2fs starts to control on a basis of the memory footprint. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-03-19 13:45:52 +09:00
f2fs: use seq_puts()/seq_putc() rather than seq_printf() where possible For string without format specifiers, using seq_puts()/seq_putc() instead of seq_printf(). Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-22 16:33:32 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: use seq_puts()/seq_putc() rather than seq_printf() where possible For string without format specifiers, using seq_puts()/seq_putc() instead of seq_printf(). Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-22 16:33:32 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: use seq_puts()/seq_putc() rather than seq_printf() where possible For string without format specifiers, using seq_puts()/seq_putc() instead of seq_printf(). Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-22 16:33:32 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: use seq_puts()/seq_putc() rather than seq_printf() where possible For string without format specifiers, using seq_puts()/seq_putc() instead of seq_printf(). Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-22 16:33:32 +08:00
f2fs: add block count by in-place-update in stat info This patch adds block count by in-place-update in stat. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-24 02:16:54 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: update memory footprint information This patch adds missing memory usages, and splits them in detail. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-01-10 21:37:36 -08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix the debugfs entry creation path As the "status" debugfs entry will be maintained for entire F2FS filesystem irrespective of the number of partitions. So, we can move the initialization to the init part of the f2fs and destroy will be done from exit part. After making changes, for individual partition mount - entry creation code will not be executed. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-15 19:58:47 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: use atomic for counting inode with inline_{dir,inode} flag As inline_{dir,inode} stat is increased/decreased concurrently by multi threads, so the value is not so accurate, let's use atomic type for counting accurately. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-08 19:08:20 +08:00
f2fs: add block count by in-place-update in stat info This patch adds block count by in-place-update in stat. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-24 02:16:54 +09:00
f2fs: use atomic for counting inode with inline_{dir,inode} flag As inline_{dir,inode} stat is increased/decreased concurrently by multi threads, so the value is not so accurate, let's use atomic type for counting accurately. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-12-08 19:08:20 +08:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: add global mutex_lock to protect f2fs_stat_list There is an race condition between umounting f2fs and reading f2fs/status, which results in oops. Fox example: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { list_for_each_entry_safe(&f2fs_stat_list) list_del(&si->stat_list); mutex_lock(&si->stat_lock); si->sbi = NULL; mutex_unlock(&si->stat_lock); kfree(sbi->stat_info); } mutex_lock(&si->stat_lock) <- si is gone. ... } Solution with a global lock: f2fs_stat_mutex: Thread A Thread B umount f2fs cat f2fs/status f2fs_destroy_stats() { stat_show() { mutex_lock(&f2fs_stat_mutex); list_del(&si->stat_list); mutex_unlock(&f2fs_stat_mutex); kfree(sbi->stat_info); mutex_lock(&f2fs_stat_mutex); } list_for_each_entry_safe(&f2fs_stat_list) ... mutex_unlock(&f2fs_stat_mutex); } Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> [jaegeuk.kim@samsung.com: fix typos, description, and remove the existing lock] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-14 20:08:16 +08:00
f2fs: add a help func F2FS_STAT() to get the f2fs_stat_info Add a help func F2FS_STAT() to get the f2fs_stat_info. Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-07-12 14:47:11 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: fix the debugfs entry creation path As the "status" debugfs entry will be maintained for entire F2FS filesystem irrespective of the number of partitions. So, we can move the initialization to the init part of the f2fs and destroy will be done from exit part. After making changes, for individual partition mount - entry creation code will not be executed. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-15 19:58:47 +09:00
f2fs: remove debufs dir if debugfs_create_file() failed When debugfs_create_file() failed in f2fs_create_root_stats(), debugfs_root should be remove. Signed-off-by: Younger Liu <liuyiyang@hisense.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 20:11:46 +08:00
f2fs: replace the debugfs_root with f2fs_debugfs_root This minor change for the naming conventions of debugfs_root to avoid any possible conflicts to the other filesystem. Signed-off-by: Younger Liu <younger.liucn@gmail.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> [Jaegeuk Kim: change the patch name] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 21:09:29 +08:00
f2fs: cleanup the needless return of f2fs_create_root_stats Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-11 18:35:43 +08:00
f2fs: remove debufs dir if debugfs_create_file() failed When debugfs_create_file() failed in f2fs_create_root_stats(), debugfs_root should be remove. Signed-off-by: Younger Liu <liuyiyang@hisense.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 20:11:46 +08:00
f2fs: replace the debugfs_root with f2fs_debugfs_root This minor change for the naming conventions of debugfs_root to avoid any possible conflicts to the other filesystem. Signed-off-by: Younger Liu <younger.liucn@gmail.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> [Jaegeuk Kim: change the patch name] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 21:09:29 +08:00
f2fs: remove debufs dir if debugfs_create_file() failed When debugfs_create_file() failed in f2fs_create_root_stats(), debugfs_root should be remove. Signed-off-by: Younger Liu <liuyiyang@hisense.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 20:11:46 +08:00
f2fs: cleanup the needless return of f2fs_create_root_stats Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-07-11 18:35:43 +08:00
f2fs: fix the debugfs entry creation path As the "status" debugfs entry will be maintained for entire F2FS filesystem irrespective of the number of partitions. So, we can move the initialization to the init part of the f2fs and destroy will be done from exit part. After making changes, for individual partition mount - entry creation code will not be executed. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-01-15 19:58:47 +09:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00
f2fs: replace the debugfs_root with f2fs_debugfs_root This minor change for the naming conventions of debugfs_root to avoid any possible conflicts to the other filesystem. Signed-off-by: Younger Liu <younger.liucn@gmail.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> [Jaegeuk Kim: change the patch name] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 21:09:29 +08:00
f2fs: remove debufs dir if debugfs_create_file() failed When debugfs_create_file() failed in f2fs_create_root_stats(), debugfs_root should be remove. Signed-off-by: Younger Liu <liuyiyang@hisense.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> Reviewed-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 20:11:46 +08:00
f2fs: replace the debugfs_root with f2fs_debugfs_root This minor change for the naming conventions of debugfs_root to avoid any possible conflicts to the other filesystem. Signed-off-by: Younger Liu <younger.liucn@gmail.com> Cc: Younger Liu <younger.liucn@gmail.com> Cc: Jaegeuk Kim <jaegeuk.kim@samsung.com> [Jaegeuk Kim: change the patch name] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-12-03 21:09:29 +08:00
f2fs: move proc files to debugfs This moves all of the f2fs debugging files into debugfs. The files are located in /sys/kernel/debug/f2fs/ Note, I think we are generating all of the same information in each of the files for every unique f2fs filesystem in the machine. This copies the functionality that was present in the proc files, but this should be fixed up in the future. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [jaegeuk.kim@samsung.com: merged 3 debugfs entries into a *status* entry] Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-03 06:50:41 +09:00