AcoSail/kernel_optimize_test
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xfs: initialize default acls for ->tmpfile()

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The current tmpfile handler does not initialize default ACLs. Doing so
within xfs_vn_tmpfile() makes it roughly equivalent to xfs_vn_mknod(),
which is already used as a common create handler.

xfs_vn_mknod() does not currently have a mechanism to determine whether
to link the file into the namespace. Therefore, further abstract
xfs_vn_mknod() into a new xfs_generic_create() handler with a tmpfile
parameter. This new handler calls xfs_create_tmpfile() and d_tmpfile()
on the dentry when called via ->tmpfile().

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Brian Foster 2014-05-06 07:34:28 +10:00 committed by Dave Chinner
parent c99d609a16
commit d540e43b0a
1 changed files with 29 additions and 26 deletions
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55
fs/xfs/xfs_iops.c
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@ -124,15 +124,15 @@ xfs_cleanup_inode(
xfs_dentry_to_name(&teardown, dentry, 0);
xfs_remove(XFS_I(dir), &teardown, XFS_I(inode));
iput(inode);
}
STATIC int
xfs_vn_mknod(
xfs_generic_create(
struct inode *dir,
struct dentry *dentry,
umode_t mode,
dev_t rdev)
dev_t rdev,
bool tmpfile) /* unnamed file */
{
struct inode *inode;
struct xfs_inode *ip = NULL;
@ -156,8 +156,12 @@ xfs_vn_mknod(
if (error)
return error;
xfs_dentry_to_name(&name, dentry, mode);
error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
if (!tmpfile) {
xfs_dentry_to_name(&name, dentry, mode);
error = xfs_create(XFS_I(dir), &name, mode, rdev, &ip);
} else {
error = xfs_create_tmpfile(XFS_I(dir), dentry, mode, &ip);
}
if (unlikely(error))
goto out_free_acl;
@ -180,7 +184,11 @@ xfs_vn_mknod(
}
#endif
d_instantiate(dentry, inode);
if (tmpfile)
d_tmpfile(dentry, inode);
else
d_instantiate(dentry, inode);
out_free_acl:
if (default_acl)
posix_acl_release(default_acl);
@ -189,10 +197,22 @@ xfs_vn_mknod(
return -error;
out_cleanup_inode:
xfs_cleanup_inode(dir, inode, dentry);
if (!tmpfile)
xfs_cleanup_inode(dir, inode, dentry);
iput(inode);
goto out_free_acl;
}
STATIC int
xfs_vn_mknod(
struct inode *dir,
struct dentry *dentry,
umode_t mode,
dev_t rdev)
{
return xfs_generic_create(dir, dentry, mode, rdev, false);
}
STATIC int
xfs_vn_create(
struct inode *dir,
@ -353,6 +373,7 @@ xfs_vn_symlink(
out_cleanup_inode:
xfs_cleanup_inode(dir, inode, dentry);
iput(inode);
out:
return -error;
}
@ -1053,25 +1074,7 @@ xfs_vn_tmpfile(
struct dentry *dentry,
umode_t mode)
{
int error;
struct xfs_inode *ip;
struct inode *inode;
error = xfs_create_tmpfile(XFS_I(dir), dentry, mode, &ip);
if (unlikely(error))
return -error;
inode = VFS_I(ip);
error = xfs_init_security(inode, dir, &dentry->d_name);
if (unlikely(error)) {
iput(inode);
return -error;
}
d_tmpfile(dentry, inode);
return 0;
return xfs_generic_create(dir, dentry, mode, 0, true);
}
static const struct inode_operations xfs_inode_operations = {