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VFS: repack DENTRY_ flags.

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Bits 13, 23, 24, and 27 are not used.  Move all those holes to the end.

Signed-off-by: NeilBrown <neilb@suse.de>
Link: https://lore.kernel.org/r/20250206054504.2950516-7-neilb@suse.de
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
NeilBrown 2025-02-06 16:42:43 +11:00 committed by Christian Brauner
parent 2014c95afe
commit 9748cb2dc3
1 changed files with 19 additions and 19 deletions
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38
include/linux/dcache.h
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@ -203,34 +203,34 @@ struct dentry_operations {
#define DCACHE_NFSFS_RENAMED BIT(12) #define DCACHE_NFSFS_RENAMED BIT(12)
/* this dentry has been "silly renamed" and has to be deleted on the last /* this dentry has been "silly renamed" and has to be deleted on the last
* dput() */ * dput() */
#define DCACHE_FSNOTIFY_PARENT_WATCHED BIT(14) #define DCACHE_FSNOTIFY_PARENT_WATCHED BIT(13)
/* Parent inode is watched by some fsnotify listener */ /* Parent inode is watched by some fsnotify listener */
#define DCACHE_DENTRY_KILLED BIT(15) #define DCACHE_DENTRY_KILLED BIT(14)
#define DCACHE_MOUNTED BIT(16) /* is a mountpoint */ #define DCACHE_MOUNTED BIT(15) /* is a mountpoint */
#define DCACHE_NEED_AUTOMOUNT BIT(17) /* handle automount on this dir */ #define DCACHE_NEED_AUTOMOUNT BIT(16) /* handle automount on this dir */
#define DCACHE_MANAGE_TRANSIT BIT(18) /* manage transit from this dirent */ #define DCACHE_MANAGE_TRANSIT BIT(17) /* manage transit from this dirent */
#define DCACHE_MANAGED_DENTRY \ #define DCACHE_MANAGED_DENTRY \
(DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT) (DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT)
#define DCACHE_LRU_LIST BIT(19) #define DCACHE_LRU_LIST BIT(18)
#define DCACHE_ENTRY_TYPE (7 << 20) /* bits 20..22 are for storing type: */ #define DCACHE_ENTRY_TYPE (7 << 19) /* bits 19..21 are for storing type: */
#define DCACHE_MISS_TYPE (0 << 20) /* Negative dentry */ #define DCACHE_MISS_TYPE (0 << 19) /* Negative dentry */
#define DCACHE_WHITEOUT_TYPE (1 << 20) /* Whiteout dentry (stop pathwalk) */ #define DCACHE_WHITEOUT_TYPE (1 << 19) /* Whiteout dentry (stop pathwalk) */
#define DCACHE_DIRECTORY_TYPE (2 << 20) /* Normal directory */ #define DCACHE_DIRECTORY_TYPE (2 << 19) /* Normal directory */
#define DCACHE_AUTODIR_TYPE (3 << 20) /* Lookupless directory (presumed automount) */ #define DCACHE_AUTODIR_TYPE (3 << 19) /* Lookupless directory (presumed automount) */
#define DCACHE_REGULAR_TYPE (4 << 20) /* Regular file type */ #define DCACHE_REGULAR_TYPE (4 << 19) /* Regular file type */
#define DCACHE_SPECIAL_TYPE (5 << 20) /* Other file type */ #define DCACHE_SPECIAL_TYPE (5 << 19) /* Other file type */
#define DCACHE_SYMLINK_TYPE (6 << 20) /* Symlink */ #define DCACHE_SYMLINK_TYPE (6 << 19) /* Symlink */
#define DCACHE_NOKEY_NAME BIT(25) /* Encrypted name encoded without key */ #define DCACHE_NOKEY_NAME BIT(22) /* Encrypted name encoded without key */
#define DCACHE_OP_REAL BIT(26) #define DCACHE_OP_REAL BIT(23)
#define DCACHE_PAR_LOOKUP BIT(28) /* being looked up (with parent locked shared) */ #define DCACHE_PAR_LOOKUP BIT(24) /* being looked up (with parent locked shared) */
#define DCACHE_DENTRY_CURSOR BIT(29) #define DCACHE_DENTRY_CURSOR BIT(25)
#define DCACHE_NORCU BIT(30) /* No RCU delay for freeing */ #define DCACHE_NORCU BIT(26) /* No RCU delay for freeing */
extern seqlock_t rename_lock; extern seqlock_t rename_lock;