From: David Howells Date: Thu, 13 Nov 2008 23:38:51 +0000 (+1100) Subject: CRED: Wrap task credential accesses in the Ext3 filesystem X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6a2f90e9fae0824e8b6b123f1ea7d9fff9079ef3;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git CRED: Wrap task credential accesses in the Ext3 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 Reviewed-by: James Morris Acked-by: Serge Hallyn Cc: Stephen Tweedie Cc: Andrew Morton Cc: adilger@sun.com Cc: linux-ext4@vger.kernel.org Signed-off-by: James Morris --- diff --git a/fs/ext3/balloc.c b/fs/ext3/balloc.c index f5b57a2ca35a..0dbf1c048475 100644 --- a/fs/ext3/balloc.c +++ b/fs/ext3/balloc.c @@ -1422,7 +1422,7 @@ static int ext3_has_free_blocks(struct ext3_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/ext3/ialloc.c b/fs/ext3/ialloc.c index 47b678d73e7a..490bd0ed7896 100644 --- a/fs/ext3/ialloc.c +++ b/fs/ext3/ialloc.c @@ -539,7 +539,7 @@ got: percpu_counter_inc(&sbi->s_dirs_counter); sb->s_dirt = 1; - 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) { @@ -547,7 +547,7 @@ 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;