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| author | Jan Kara <jack@suse.cz> | 2008-09-30 17:53:37 +0200 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2009-01-05 08:36:57 -0800 |
| commit | ca785ec66b991e9ca74dd9840fc014487ad095e1 (patch) | |
| tree | 271c7b36123e9c16f455ecd96352d24ecd20423c /include/linux/quota.h | |
| parent | dcb30695f2cac86b71417629a6fe8042b4fe2ab2 (diff) | |
| download | linux-ca785ec66b991e9ca74dd9840fc014487ad095e1.tar.gz linux-ca785ec66b991e9ca74dd9840fc014487ad095e1.tar.bz2 linux-ca785ec66b991e9ca74dd9840fc014487ad095e1.zip | |
quota: Introduce DQUOT_QUOTA_SYS_FILE flag
If filesystem can handle quota files as system files hidden from users, we can
skip a lot of cache invalidation, syncing, inode flags setting etc. when
turning quotas on, off and quota_sync. Allow filesystem to indicate that it is
hiding quota files from users by DQUOT_QUOTA_SYS_FILE flag.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'include/linux/quota.h')
| -rw-r--r-- | include/linux/quota.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/quota.h b/include/linux/quota.h index 93717abcd35b..80b8807b4988 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -332,6 +332,13 @@ enum { #define DQUOT_SUSPENDED (1 << _DQUOT_SUSPENDED) #define DQUOT_STATE_FLAGS (DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED | \ DQUOT_SUSPENDED) +/* Other quota flags */ +#define DQUOT_QUOTA_SYS_FILE (1 << 6) /* Quota file is a special + * system file and user cannot + * touch it. Filesystem is + * responsible for setting + * S_NOQUOTA, S_NOATIME flags + */ static inline unsigned int dquot_state_flag(unsigned int flags, int type) { |