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linux/fs/nilfs2/alloc.c

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nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: insert cache operation in palloc get block routines This implements cache operation in get block routines of palloc code: nilfs_palloc_get_desc_block(), nilfs_palloc_get_bitmap_block(), and nilfs_palloc_get_entry_block(). This will complete the palloc cache. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 18:40:27 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: insert cache operation in palloc get block routines This implements cache operation in get block routines of palloc code: nilfs_palloc_get_desc_block(), nilfs_palloc_get_bitmap_block(), and nilfs_palloc_get_entry_block(). This will complete the palloc cache. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 18:40:27 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: insert cache operation in palloc get block routines This implements cache operation in get block routines of palloc code: nilfs_palloc_get_desc_block(), nilfs_palloc_get_bitmap_block(), and nilfs_palloc_get_entry_block(). This will complete the palloc cache. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 18:40:27 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: insert cache operation in palloc get block routines This implements cache operation in get block routines of palloc code: nilfs_palloc_get_desc_block(), nilfs_palloc_get_bitmap_block(), and nilfs_palloc_get_entry_block(). This will complete the palloc cache. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 18:40:27 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: unfold nilfs_palloc_block_get_bitmap function This expands a trivial address calculation in the function into its every callsite. This expansion improves readability of the callers. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 13:48:06 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: unfold nilfs_palloc_block_get_bitmap function This expands a trivial address calculation in the function into its every callsite. This expansion improves readability of the callers. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 13:48:06 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: unfold nilfs_palloc_block_get_bitmap function This expands a trivial address calculation in the function into its every callsite. This expansion improves readability of the callers. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 13:48:06 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: unfold nilfs_palloc_block_get_bitmap function This expands a trivial address calculation in the function into its every callsite. This expansion improves readability of the callers. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 13:48:06 +09:00
nilfs2: persistent object allocator This adds common functions to allocate or deallocate entries with bitmaps on a meta data file. This feature is used by the DAT and ifile. Signed-off-by: Koji Sato <sato.koji@lab.ntt.co.jp> Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Signed-off-by: Yoshiji Amagai <amagai.yoshiji@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-06 19:01:29 -07:00
nilfs2: add cache framework for persistent object allocator This adds setup and cleanup routines of the persistent object allocator cache. According to ftrace analyses, accessing buffers of the DAT file suffers indispensable overhead many times. To mitigate the overhead, This introduce cache framework for the persistent object allocator (palloc) which the DAT file and ifile are using. struct nilfs_palloc_cache represents the cache object per metadata file using palloc. The cache is initialized through nilfs_palloc_setup_cache() and destroyed by nilfs_palloc_destroy_cache(); callers of the former function will be added to individual allocators of DAT and ifile on successive patches. nilfs_palloc_destroy_cache() will be called from nilfs_mdt_destroy() if the cache is attached to a metadata file. A companion function nilfs_palloc_clear_cache() is provided to allow releasing buffer head references independently with the cleanup task. This adjunctive function will be used before invalidating pages of metadata file with the cache. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
2009-11-14 15:54:27 +09:00