diff options
| author | Ingo Molnar <mingo@elte.hu> | 2010-12-19 18:35:08 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-12-19 18:35:14 +0300 |
| commit | ca680888d5d0d03862ec311a83c6a1c7a1e00a01 (patch) | |
| tree | bc2a1777f1d715f947fa77940ebce5c43029b37b /Documentation/filesystems/vfs.txt | |
| parent | 40dc11ffb35e8c4e8fa71092048e0f8de9db758c (diff) | |
| parent | b0c3844d8af6b9f3f18f31e1b0502fbefa2166be (diff) | |
| download | linux-ca680888d5d0d03862ec311a83c6a1c7a1e00a01.tar.xz | |
Merge commit 'v2.6.37-rc6' into sched/core
Merge reason: Update to 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 55c28b79d8dc..20899e095e7e 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 |