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mount options: fix tmpfs

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Add .show_options super operation to tmpfs.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
akpm@linux-foundation.org
2008-02-08 04:21:48 -08:00
committed by Linus Torvalds
parent 90d09e141b
commit 680d794bab
2 changed files with 136 additions and 65 deletions
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5
include/linux/shmem_fs.h
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@ -30,9 +30,12 @@ struct shmem_sb_info {
unsigned long free_blocks; /* How many are left for allocation */
unsigned long max_inodes; /* How many inodes are allowed */
unsigned long free_inodes; /* How many are left for allocation */
spinlock_t stat_lock; /* Serialize shmem_sb_info changes */
uid_t uid; /* Mount uid for root directory */
gid_t gid; /* Mount gid for root directory */
mode_t mode; /* Mount mode for root directory */
int policy; /* Default NUMA memory alloc policy */
nodemask_t policy_nodes; /* nodemask for preferred and bind */
spinlock_t stat_lock;
};
static inline struct shmem_inode_info *SHMEM_I(struct inode *inode)