From 26bf1946e69abf9528beda7adb4a783c439a5f7b Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 14 Nov 2008 10:39:03 +1100
Subject: [PATCH] CRED: Wrap task credential accesses in the UBIFS filesystem
Wrap access to task credentials so that they can be separated more easily from
the task_struct during the introduction of COW creds.
Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().
Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
sense to use RCU directly rather than a convenient wrapper; these will be
addressed by later patches.
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: James Morris <jmorris@namei.org>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Artem Bityutskiy <dedekind@infradead.org>
Cc: Adrian Hunter <ext-adrian.hunter@nokia.com>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: James Morris <jmorris@namei.org>
---
fs/ubifs/budget.c | 2 +-
fs/ubifs/dir.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/fs/ubifs/budget.c b/fs/ubifs/budget.c
index 1a4973e10664..4a18f084cc42 100644
--- a/fs/ubifs/budget.c
+++ b/fs/ubifs/budget.c
@@ -363,7 +363,7 @@ long long ubifs_calc_available(const struct ubifs_info *c, int min_idx_lebs)
*/
static int can_use_rp(struct ubifs_info *c)
{
- if (current->fsuid == c->rp_uid || capable(CAP_SYS_RESOURCE) ||
+ if (current_fsuid() == c->rp_uid || capable(CAP_SYS_RESOURCE) ||
(c->rp_gid != 0 && in_group_p(c->rp_gid)))
return 1;
return 0;
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 526c01ec8003..856189014a3a 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -104,13 +104,13 @@ struct inode *ubifs_new_inode(struct ubifs_info *c, const struct inode *dir,
*/
inode->i_flags |= (S_NOCMTIME);
- inode->i_uid = current->fsuid;
+ inode->i_uid = current_fsuid();
if (dir->i_mode & S_ISGID) {
inode->i_gid = dir->i_gid;
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
- inode->i_gid = current->fsgid;
+ inode->i_gid = current_fsgid();
inode->i_mode = mode;
inode->i_mtime = inode->i_atime = inode->i_ctime =
ubifs_current_time(inode);
--
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