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authorDavid Howells <dhowells@redhat.com>2008-11-14 10:38:50 +1100
committerJames Morris <jmorris@namei.org>2008-11-14 10:38:50 +1100
commita8dd4d67bdf9c48c5ebfa366592fde7e2d318b4f (patch)
treed0346d1b2d3947685f76a3e7150d5773ae7ddfcc
parent4eea03539d9a8e3f5056aed690efde1f75535e7b (diff)
downloadlinux-2.6.38-lt-ux500-a8dd4d67bdf9c48c5ebfa366592fde7e2d318b4f.tar.gz
CRED: Wrap task credential accesses in the Ext2 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: linux-ext4@vger.kernel.org Signed-off-by: James Morris <jmorris@namei.org>
-rw-r--r--fs/ext2/balloc.c2
-rw-r--r--fs/ext2/ialloc.c4
2 files changed, 3 insertions, 3 deletions
diff --git a/fs/ext2/balloc.c b/fs/ext2/balloc.c
index 6dac7ba2d22..4a29d637608 100644
--- a/fs/ext2/balloc.c
+++ b/fs/ext2/balloc.c
@@ -1193,7 +1193,7 @@ static int ext2_has_free_blocks(struct ext2_sb_info *sbi)
free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
- sbi->s_resuid != current->fsuid &&
+ sbi->s_resuid != current_fsuid() &&
(sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
return 0;
}
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index f5974134676..8d0add62587 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -550,7 +550,7 @@ got:
sb->s_dirt = 1;
mark_buffer_dirty(bh2);
- inode->i_uid = current->fsuid;
+ inode->i_uid = current_fsuid();
if (test_opt (sb, GRPID))
inode->i_gid = dir->i_gid;
else if (dir->i_mode & S_ISGID) {
@@ -558,7 +558,7 @@ got:
if (S_ISDIR(mode))
mode |= S_ISGID;
} else
- inode->i_gid = current->fsgid;
+ inode->i_gid = current_fsgid();
inode->i_mode = mode;
inode->i_ino = ino;