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Commit cafa6b5d authored by Eric W. Biederman's avatar Eric W. Biederman Committed by Greg Kroah-Hartman
Browse files

sysfs: Store the sysfs inode in an unsigned int. 



Store the sysfs inode number in an unsided int because
ida inode allocator can return at most a 31 bit number,
reducing the size of struct sysfs_dirent by 8 bytes
on 64bit platforms.

Signed-off-by: default avatarEric W. Biederman <ebiederm@xmission.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 15a33824

fs/sysfs/dir.c

+2 −2
Original line number Diff line number Diff line
@@ -224,7 +224,7 @@ static void sysfs_deactivate(struct sysfs_dirent *sd) 
	rwsem_release(&sd->dep_map, 1, _RET_IP_);

}



static int sysfs_alloc_ino(ino_t *pino)

static int sysfs_alloc_ino(unsigned int *pino)

{

	int ino, rc;
@@ -243,7 +243,7 @@ static int sysfs_alloc_ino(ino_t *pino) 
	return rc;

}



static void sysfs_free_ino(ino_t ino)

static void sysfs_free_ino(unsigned int ino)

{

	spin_lock(&sysfs_ino_lock);

	ida_remove(&sysfs_ino_ida, ino);

fs/sysfs/sysfs.h

+1 −1
Original line number Diff line number Diff line
@@ -79,7 +79,7 @@ struct sysfs_dirent { 


	unsigned short		s_flags;

	umode_t 		s_mode;

	ino_t			s_ino;

	unsigned int		s_ino;

	struct sysfs_inode_attrs *s_iattr;

};