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From: Greg KH on 22 Apr 2010 15:30
2.6.32-stable review patch. If anyone has any objections, please let us know.

------------------


From: Jason Gunthorpe <jgunthorpe(a)obsidianresearch.com>

commit 44a743f68705c681439f264deb05f8f38e9048d3 upstream

Noticed that through glibc fallocate would return 28 rather than -1
and errno = 28 for ENOSPC. The xfs routines uses XFS_ERROR format
positive return error codes while the syscalls use negative return
codes. Fixup the two cases in xfs_vn_fallocate syscall to convert to
negative.

Signed-off-by: Jason Gunthorpe <jgunthorpe(a)obsidianresearch.com>
Reviewed-by: Eric Sandeen <sandeen(a)sandeen.net>
Signed-off-by: Alex Elder <aelder(a)sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)suse.de>
---
fs/xfs/linux-2.6/xfs_iops.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

--- a/fs/xfs/linux-2.6/xfs_iops.c
+++ b/fs/xfs/linux-2.6/xfs_iops.c
@@ -573,8 +573,8 @@ xfs_vn_fallocate(
bf.l_len = len;

xfs_ilock(ip, XFS_IOLOCK_EXCL);
- error = xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf,
- 0, XFS_ATTR_NOLOCK);
+ error = -xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf,
+ 0, XFS_ATTR_NOLOCK);
if (!error && !(mode & FALLOC_FL_KEEP_SIZE) &&
offset + len > i_size_read(inode))
new_size = offset + len;
@@ -585,7 +585,7 @@ xfs_vn_fallocate(

iattr.ia_valid = ATTR_SIZE;
iattr.ia_size = new_size;
- error = xfs_setattr(ip, &iattr, XFS_ATTR_NOLOCK);
+ error = -xfs_setattr(ip, &iattr, XFS_ATTR_NOLOCK);
}

xfs_iunlock(ip, XFS_IOLOCK_EXCL);


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