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Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

Browse source 
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFS: Fix another nfs_wb_page() deadlock
  NFS: Ensure that we mark the inode as dirty if we exit early from commit
  NFS: Fix a lock imbalance typo in nfs_access_cache_shrinker
  sunrpc: fix leak on error on socket xprt setup
This commit is contained in:
Linus Torvalds 2010-05-27 10:18:44 -07:00
commit ade61088bc
3 changed files with 35 additions and 15 deletions
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1
fs/nfs/dir.c
View file

@ -1741,6 +1741,7 @@ remove_lru_entry:
clear_bit(NFS_INO_ACL_LRU_SET, &nfsi->flags);
smp_mb__after_clear_bit();
}
spin_unlock(&inode->i_lock);
}
spin_unlock(&nfs_access_lru_lock);
nfs_access_free_list(&head);

20
fs/nfs/write.c
View file

@ -1386,7 +1386,7 @@ static int nfs_commit_inode(struct inode *inode, int how)
int res = 0;
if (!nfs_commit_set_lock(NFS_I(inode), may_wait))
goto out;
goto out_mark_dirty;
spin_lock(&inode->i_lock);
res = nfs_scan_commit(inode, &head, 0, 0);
spin_unlock(&inode->i_lock);
@ -1398,9 +1398,18 @@ static int nfs_commit_inode(struct inode *inode, int how)
wait_on_bit(&NFS_I(inode)->flags, NFS_INO_COMMIT,
nfs_wait_bit_killable,
TASK_KILLABLE);
else
goto out_mark_dirty;
} else
nfs_commit_clear_lock(NFS_I(inode));
out:
return res;
/* Note: If we exit without ensuring that the commit is complete,
* we must mark the inode as dirty. Otherwise, future calls to
* sync_inode() with the WB_SYNC_ALL flag set will fail to ensure
* that the data is on the disk.
*/
out_mark_dirty:
__mark_inode_dirty(inode, I_DIRTY_DATASYNC);
return res;
}
@ -1509,14 +1518,17 @@ int nfs_wb_page(struct inode *inode, struct page *page)
};
int ret;
while(PagePrivate(page)) {
for (;;) {
wait_on_page_writeback(page);
if (clear_page_dirty_for_io(page)) {
ret = nfs_writepage_locked(page, &wbc);
if (ret < 0)
goto out_error;
continue;
}
ret = sync_inode(inode, &wbc);
if (!PagePrivate(page))
break;
ret = nfs_commit_inode(inode, FLUSH_SYNC);
if (ret < 0)
goto out_error;
}