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xfs: remove xfs_iput_new 

We never get an i_mode of 0 or a locked VFS inode until we pass in the
XFS_IGET_CREATE flag to xfs_iget, which makes xfs_iput_new equivalent to
xfs_iput for the only caller.  In addition to that xfs_nfs_get_inode
does not even need to lock the inode given that the generation never changes
for a life inode, so just pass a 0 lock_flags to xfs_iget and release
the inode using IRELE in the error path.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Christoph Hellwig 2010-06-24 11:51:19 +10:00 committed by Alex Elder
parent d2e078c33c
commit ef35e9255d
3 changed files with 3 additions and 28 deletions
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7
fs/xfs/linux-2.6/xfs_export.c
View File

@ -29,6 +29,7 @@
#include "xfs_bmap_btree.h" #include "xfs_bmap_btree.h"
#include "xfs_inode.h" #include "xfs_inode.h"
#include "xfs_inode_item.h" #include "xfs_inode_item.h"
#include "xfs_trace.h"
/* /*
* Note that we only accept fileids which are long enough rather than allow * Note that we only accept fileids which are long enough rather than allow
@ -131,8 +132,7 @@ xfs_nfs_get_inode(
* fine and not an indication of a corrupted filesystem as clients can * fine and not an indication of a corrupted filesystem as clients can
* send invalid file handles and we have to handle it gracefully.. * send invalid file handles and we have to handle it gracefully..
*/ */
error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, error = xfs_iget(mp, NULL, ino, XFS_IGET_UNTRUSTED, 0, &ip);
XFS_ILOCK_SHARED, &ip);
if (error) { if (error) {
/* /*
* EINVAL means the inode cluster doesn't exist anymore. * EINVAL means the inode cluster doesn't exist anymore.
@ -147,11 +147,10 @@ xfs_nfs_get_inode(
} }
if (ip->i_d.di_gen != generation) { if (ip->i_d.di_gen != generation) {
xfs_iput_new(ip, XFS_ILOCK_SHARED); IRELE(ip);
return ERR_PTR(-ENOENT); return ERR_PTR(-ENOENT);
} }
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return VFS_I(ip); return VFS_I(ip);
} }

23
fs/xfs/xfs_iget.c
View File

@ -434,29 +434,6 @@ xfs_iput(xfs_inode_t *ip,
IRELE(ip); IRELE(ip);
} }
/*
* Special iput for brand-new inodes that are still locked
*/
void
xfs_iput_new(
xfs_inode_t *ip,
uint lock_flags)
{
struct inode *inode = VFS_I(ip);
xfs_itrace_entry(ip);
if ((ip->i_d.di_mode == 0)) {
ASSERT(!xfs_iflags_test(ip, XFS_IRECLAIMABLE));
make_bad_inode(inode);
}
if (inode->i_state & I_NEW)
unlock_new_inode(inode);
if (lock_flags)
xfs_iunlock(ip, lock_flags);
IRELE(ip);
}
/* /*
* This is called free all the memory associated with an inode. * This is called free all the memory associated with an inode.
* It must free the inode itself and any buffers allocated for * It must free the inode itself and any buffers allocated for

1
fs/xfs/xfs_inode.h
View File

@ -444,7 +444,6 @@ static inline void xfs_ifunlock(xfs_inode_t *ip)
int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t, int xfs_iget(struct xfs_mount *, struct xfs_trans *, xfs_ino_t,
uint, uint, xfs_inode_t **); uint, uint, xfs_inode_t **);
void xfs_iput(xfs_inode_t *, uint); void xfs_iput(xfs_inode_t *, uint);
void xfs_iput_new(xfs_inode_t *, uint);
void xfs_ilock(xfs_inode_t *, uint); void xfs_ilock(xfs_inode_t *, uint);
int xfs_ilock_nowait(xfs_inode_t *, uint); int xfs_ilock_nowait(xfs_inode_t *, uint);
void xfs_iunlock(xfs_inode_t *, uint); void xfs_iunlock(xfs_inode_t *, uint);