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Btrfs: apply updated fallocate i_size fix

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commit 23b5c50945 upstream.

This version of the i_size fix for fallocate makes sure we only update
the i_size when the current fallocate is really operating outside of
i_size.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
Acked-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Aneesh Kumar K.V
2010-02-04 11:33:03 -05:00
committed by Greg Kroah-Hartman
parent 8fde9c08a0
commit b5763c0f3b
1 changed files with 3 additions and 1 deletions
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4
fs/btrfs/inode.c
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@@ -5798,7 +5798,9 @@ static int prealloc_file_range(struct inode *inode, u64 start, u64 end,
inode->i_ctime = CURRENT_TIME;
BTRFS_I(inode)->flags |= BTRFS_INODE_PREALLOC;
if (!(mode & FALLOC_FL_KEEP_SIZE) &&
cur_offset > inode->i_size) {
(actual_len > inode->i_size) &&
(cur_offset > inode->i_size)) {
if (cur_offset > actual_len)
i_size = actual_len;
else