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[XFS] wire up ->open for directories

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Currently there's no ->open method set for directories on XFS.  That
means we don't perform any check for opening too large directories
without O_LARGEFILE, we don't check for shut down filesystems, and we
don't actually do the readahead for the first block in the directory.

Instead of just setting the directories open routine to xfs_file_open
we merge the shutdown check directly into xfs_file_open and create
a new xfs_dir_open that first calls xfs_file_open and then performs
the readahead for block 0.

(First sent on September 29th)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
This commit is contained in:
Christoph Hellwig 2008-11-28 14:23:32 +11:00 • committed by Niv Sardi
parent bac8dca9f9
commit f999a5bf3f
3 changed files with 31 additions and 26 deletions
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22
fs/xfs/xfs_vnodeops.c
View file

@ -53,28 +53,6 @@
#include "xfs_filestream.h"
#include "xfs_vnodeops.h"
int
xfs_open(
xfs_inode_t *ip)
{
int mode;
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return XFS_ERROR(EIO);
/*
* If it's a directory with any blocks, read-ahead block 0
* as we're almost certain to have the next operation be a read there.
*/
if (S_ISDIR(ip->i_d.di_mode) && ip->i_d.di_nextents > 0) {
mode = xfs_ilock_map_shared(ip);
if (ip->i_d.di_nextents > 0)
(void)xfs_da_reada_buf(NULL, ip, 0, XFS_DATA_FORK);
xfs_iunlock(ip, mode);
}
return 0;
}
int
xfs_setattr(
struct xfs_inode *ip,