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xfs: combine xfs_dir_canenter into xfs_dir_createname

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xfs_dir_canenter and xfs_dir_createname are
almost identical.

Fold the former into the latter, with a helpful
wrapper for the former.  If createname is called without
an inode number, it now only checks for space, and does
not actually add the entry.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Eric Sandeen 2014-09-09 11:58:07 +10:00 committed by Dave Chinner
parent 94f3cad555
commit b16ed7c114
1 changed files with 11 additions and 49 deletions
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60
fs/xfs/libxfs/xfs_dir2.c
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@ -237,7 +237,8 @@ xfs_dir_init(
}
/*
Enter a name in a directory.
* Enter a name in a directory, or check for available space.
* If inum is 0, only the available space test is performed.
*/
int
xfs_dir_createname(
@ -254,10 +255,12 @@ xfs_dir_createname(
int v; /* type-checking value */
ASSERT(S_ISDIR(dp->i_d.di_mode));
rval = xfs_dir_ino_validate(tp->t_mountp, inum);
if (rval)
return rval;
XFS_STATS_INC(xs_dir_create);
if (inum) {
rval = xfs_dir_ino_validate(tp->t_mountp, inum);
if (rval)
return rval;
XFS_STATS_INC(xs_dir_create);
}
args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS);
if (!args)
@ -276,6 +279,8 @@ xfs_dir_createname(
args->whichfork = XFS_DATA_FORK;
args->trans = tp;
args->op_flags = XFS_DA_OP_ADDNAME | XFS_DA_OP_OKNOENT;
if (!inum)
args->op_flags |= XFS_DA_OP_JUSTCHECK;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
rval = xfs_dir2_sf_addname(args);
@ -542,50 +547,7 @@ xfs_dir_canenter(
xfs_inode_t *dp,
struct xfs_name *name) /* name of entry to add */
{
struct xfs_da_args *args;
int rval;
int v; /* type-checking value */
ASSERT(S_ISDIR(dp->i_d.di_mode));
args = kmem_zalloc(sizeof(*args), KM_SLEEP | KM_NOFS);
if (!args)
return -ENOMEM;
args->geo = dp->i_mount->m_dir_geo;
args->name = name->name;
args->namelen = name->len;
args->filetype = name->type;
args->hashval = dp->i_mount->m_dirnameops->hashname(name);
args->dp = dp;
args->whichfork = XFS_DATA_FORK;
args->trans = tp;
args->op_flags = XFS_DA_OP_JUSTCHECK | XFS_DA_OP_ADDNAME |
XFS_DA_OP_OKNOENT;
if (dp->i_d.di_format == XFS_DINODE_FMT_LOCAL) {
rval = xfs_dir2_sf_addname(args);
goto out_free;
}
rval = xfs_dir2_isblock(args, &v);
if (rval)
goto out_free;
if (v) {
rval = xfs_dir2_block_addname(args);
goto out_free;
}
rval = xfs_dir2_isleaf(args, &v);
if (rval)
goto out_free;
if (v)
rval = xfs_dir2_leaf_addname(args);
else
rval = xfs_dir2_node_addname(args);
out_free:
kmem_free(args);
return rval;
return xfs_dir_createname(tp, dp, name, 0, NULL, NULL, 0);
}
/*