diff options
author | Ingo Molnar <mingo@elte.hu> | 2010-12-22 10:53:20 (GMT) |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2010-12-22 10:53:23 (GMT) |
commit | 6c529a266bdc590a870ee2d2092ff6527eff427b (patch) | |
tree | 7be65fa2578820a1258b5a1e8e063a509a5d6176 /Documentation/filesystems/vfs.txt | |
parent | 7639dae0ca11038286bbbcda05f2bef601c1eb8d (diff) | |
parent | 90a8a73c06cc32b609a880d48449d7083327e11a (diff) | |
download | linux-fsl-qoriq-6c529a266bdc590a870ee2d2092ff6527eff427b.tar.xz |
Merge commit 'v2.6.37-rc7' into perf/core
Merge reason: Pick up the latest -rc.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/filesystems/vfs.txt')
-rw-r--r-- | Documentation/filesystems/vfs.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 55c28b7..20899e0 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -534,6 +534,7 @@ struct address_space_operations { sector_t (*bmap)(struct address_space *, sector_t); int (*invalidatepage) (struct page *, unsigned long); int (*releasepage) (struct page *, int); + void (*freepage)(struct page *); ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov, loff_t offset, unsigned long nr_segs); struct page* (*get_xip_page)(struct address_space *, sector_t, @@ -678,6 +679,12 @@ struct address_space_operations { need to ensure this. Possibly it can clear the PageUptodate bit if it cannot free private data yet. + freepage: freepage is called once the page is no longer visible in + the page cache in order to allow the cleanup of any private + data. Since it may be called by the memory reclaimer, it + should not assume that the original address_space mapping still + exists, and it should not block. + direct_IO: called by the generic read/write routines to perform direct_IO - that is IO requests which bypass the page cache and transfer data directly between the storage and the |