> OK. The first patch in this series fixes the regression reported by
> Nick Bowler when I apply it to my setup.
> The 2 remaining patches are needed in order to ensure that the
> VM doesn't free the readdir page cache page while we're trying to
> read from it, and to ensure that we don't leak memory...
> Linus, please don't apply these patches quite yet. I'd like to continue
> tests for a couple more days before I send you the pull request.
v2 fixes the following issues:
- Fix up the cookie usage in uncached_readdir()
- Changelog fixups for the second patch
- .releasepage should use kmap_atomic() so that it can be called
from all direct reclaim contexts.
- Ensure that .releasepage also clears Pg_uptodate
- Set/clear the Pg_private flag to ensure .releasepage gets called when
appropriate.
- Add a .invalidatepage to ensure truncate_inode_pages() works correctly
- Ensure that the anonymous page that is generated by uncached_readdir()
doesn't leak memory.
v3:
- add the freepage() address space operation.
- Dump the page locking
- rewrite patch 'Fix a memory leak in nfs_readdir' to work with the new
->freepage() callback.
Linus Torvalds (1):
Call the filesystem back whenever a page is removed from the page
cache
Trond Myklebust (2):
NFS: Ensure we use the correct cookie in nfs_readdir_xdr_filler
NFS: Fix a memory leak in nfs_readdir
Documentation/filesystems/Locking | 7 ++++++-
Documentation/filesystems/vfs.txt | 7 +++++++
fs/nfs/dir.c | 28 +++++++++++++++++-----------
fs/nfs/inode.c | 1 +
include/linux/fs.h | 1 +
include/linux/nfs_fs.h | 1 +
mm/truncate.c | 8 ++++++++
mm/vmscan.c | 11 +++++++++++
8 files changed, 52 insertions(+), 12 deletions(-)
--
1.7.3.2
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