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authorAndrew Morton <akpm@linux-foundation.org>2010-12-02 14:31:19 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-12-02 14:51:15 -0800
commit4fe65cab844e6d3d7d310e66a501d5e7242ecb54 (patch)
tree46d80c5091d14a9d2492d1e49e421a2c6ae889bd /Documentation
parent64141da587241301ce8638cc945f8b67853156ec (diff)
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Documentation/filesystems/vfs.txt: fix ->repeasepage() description
->releasepage() does not remove the page from the mapping. Acked-by: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/filesystems/vfs.txt9
1 files changed, 4 insertions, 5 deletions
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index ed7e5efc06d..55c28b79d8d 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -660,11 +660,10 @@ struct address_space_operations {
releasepage: releasepage is called on PagePrivate pages to indicate
that the page should be freed if possible. ->releasepage
should remove any private data from the page and clear the
- PagePrivate flag. It may also remove the page from the
- address_space. If this fails for some reason, it may indicate
- failure with a 0 return value.
- This is used in two distinct though related cases. The first
- is when the VM finds a clean page with no active users and
+ PagePrivate flag. If releasepage() fails for some reason, it must
+ indicate failure with a 0 return value.
+ releasepage() is used in two distinct though related cases. The
+ first is when the VM finds a clean page with no active users and
wants to make it a free page. If ->releasepage succeeds, the
page will be removed from the address_space and become free.