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CRED: Wrap task credential accesses in the FAT filesystem

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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>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: James Morris <jmorris@namei.org>
This commit is contained in:
David Howells 2008-11-14 10:38:52 +11:00 committed by James Morris
parent 4c9c544e49
commit f0ce7ee3a8
2 changed files with 3 additions and 3 deletions
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2
fs/fat/file.c
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@ -302,7 +302,7 @@ static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode)
{ {
mode_t allow_utime = sbi->options.allow_utime; mode_t allow_utime = sbi->options.allow_utime;
if (current->fsuid != inode->i_uid) { if (current_fsuid() != inode->i_uid) {
if (in_group_p(inode->i_gid)) if (in_group_p(inode->i_gid))
allow_utime >>= 3; allow_utime >>= 3;
if (allow_utime & MAY_WRITE) if (allow_utime & MAY_WRITE)

4
fs/fat/inode.c
View file

@ -921,8 +921,8 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
opts->isvfat = is_vfat; opts->isvfat = is_vfat;
opts->fs_uid = current->uid; opts->fs_uid = current_uid();
opts->fs_gid = current->gid; opts->fs_gid = current_gid();
opts->fs_fmask = opts->fs_dmask = current->fs->umask; opts->fs_fmask = opts->fs_dmask = current->fs->umask;
opts->allow_utime = -1; opts->allow_utime = -1;
opts->codepage = fat_default_codepage; opts->codepage = fat_default_codepage;