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linux/fs/ext4/sysfs.c

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ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: check return value of kstrtoull correctly in reserved_clusters_store commit 1ea1516fbbab2b30bf98c534ecaacba579a35208 upstream. kstrtoull returns 0 on success, however, in reserved_clusters_store we will return -EINVAL if kstrtoull returns 0, it makes us fail to update reserved_clusters value through sysfs. Fixes: 76d33bca5581b1dd5c3157fa168db849a784ada4 Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Miao Xie <miaoxie@huawei.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-23 01:08:22 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: do not advertise encryption support when disabled The sysfs file /sys/fs/ext4/features/encryption was present on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=n. This was misleading because such kernels do not actually support ext4 encryption. Therefore, only provide this file on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=y. Note: since the ext4 feature files are all hardcoded to have a contents of "supported", it really is the presence or absence of the file that is significant, not the contents (and this change reflects that). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@vger.kernel.org
2016-10-12 23:24:51 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: do not advertise encryption support when disabled The sysfs file /sys/fs/ext4/features/encryption was present on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=n. This was misleading because such kernels do not actually support ext4 encryption. Therefore, only provide this file on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=y. Note: since the ext4 feature files are all hardcoded to have a contents of "supported", it really is the presence or absence of the file that is significant, not the contents (and this change reflects that). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@vger.kernel.org
2016-10-12 23:24:51 -04:00
ext4: store checksum seed in superblock Allow the filesystem to store the metadata checksum seed in the superblock and add an incompat feature to say that we're using it. This enables tune2fs to change the UUID on a mounted metadata_csum FS without having to (racy!) rewrite all disk metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-10-17 16:16:02 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: do not advertise encryption support when disabled The sysfs file /sys/fs/ext4/features/encryption was present on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=n. This was misleading because such kernels do not actually support ext4 encryption. Therefore, only provide this file on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=y. Note: since the ext4 feature files are all hardcoded to have a contents of "supported", it really is the presence or absence of the file that is significant, not the contents (and this change reflects that). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@vger.kernel.org
2016-10-12 23:24:51 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: do not advertise encryption support when disabled The sysfs file /sys/fs/ext4/features/encryption was present on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=n. This was misleading because such kernels do not actually support ext4 encryption. Therefore, only provide this file on kernels compiled with CONFIG_EXT4_FS_ENCRYPTION=y. Note: since the ext4 feature files are all hardcoded to have a contents of "supported", it really is the presence or absence of the file that is significant, not the contents (and this change reflects that). Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu> Cc: stable@vger.kernel.org
2016-10-12 23:24:51 -04:00
ext4: store checksum seed in superblock Allow the filesystem to store the metadata checksum seed in the superblock and add an incompat feature to say that we're using it. This enables tune2fs to change the UUID on a mounted metadata_csum FS without having to (racy!) rewrite all disk metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-10-17 16:16:02 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: refactor sysfs support code Make the code more easily extensible as well as taking up less compiled space. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:45:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: add "static" to ext4_seq_##name##_fops struct to fix sparse warning, add static to ext4_seq_##name##_fops struct. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-11-26 15:52:24 -05:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c This allows us to refactor the procfs code, which saves a bit of compiled space. More importantly it isolates most of the procfs support code into a single file, so it's easier to #ifdef it out if the proc file system has been disabled. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:46:17 -04:00
ext4: move sysfs code from super.c to fs/ext4/sysfs.c Also statically allocate the ext4_kset and ext4_feat objects, since we only need exactly one of each, and it's simpler and less code if we drop the dynamic allocation and deallocation when it's not needed. Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2015-09-23 12:44:17 -04:00