diff options
| -rw-r--r-- | fs/sysfs/dir.c | 16 | ||||
| -rw-r--r-- | fs/sysfs/inode.c | 1 | ||||
| -rw-r--r-- | fs/sysfs/mount.c | 1 | ||||
| -rw-r--r-- | include/linux/sysfs.h | 1 |
4 files changed, 14 insertions, 5 deletions
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c index 511edef8b321..37430863bc6e 100644 --- a/fs/sysfs/dir.c +++ b/fs/sysfs/dir.c @@ -29,6 +29,14 @@ static struct dentry_operations sysfs_dentry_ops = { .d_iput = sysfs_d_iput, }; +static unsigned int sysfs_inode_counter; +ino_t sysfs_get_inum(void) +{ + if (unlikely(sysfs_inode_counter < 3)) + sysfs_inode_counter = 3; + return sysfs_inode_counter++; +} + /* * Allocates a new sysfs_dirent and links it to the parent sysfs_dirent */ @@ -42,6 +50,7 @@ static struct sysfs_dirent * sysfs_new_dirent(struct sysfs_dirent * parent_sd, return NULL; memset(sd, 0, sizeof(*sd)); + sd->s_ino = sysfs_get_inum(); atomic_set(&sd->s_count, 1); atomic_set(&sd->s_event, 1); INIT_LIST_HEAD(&sd->s_children); @@ -461,7 +470,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) switch (i) { case 0: - ino = dentry->d_inode->i_ino; + ino = parent_sd->s_ino; if (filldir(dirent, ".", 1, i, ino, DT_DIR) < 0) break; filp->f_pos++; @@ -490,10 +499,7 @@ static int sysfs_readdir(struct file * filp, void * dirent, filldir_t filldir) name = sysfs_get_name(next); len = strlen(name); - if (next->s_dentry) - ino = next->s_dentry->d_inode->i_ino; - else - ino = iunique(sysfs_sb, 2); + ino = next->s_ino; if (filldir(dirent, name, len, filp->f_pos, ino, dt_type(next)) < 0) diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index e79e38d52c00..bb2da9df368d 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -129,6 +129,7 @@ struct inode * sysfs_new_inode(mode_t mode, struct sysfs_dirent * sd) inode->i_mapping->a_ops = &sysfs_aops; inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info; inode->i_op = &sysfs_inode_operations; + inode->i_ino = sd->s_ino; lockdep_set_class(&inode->i_mutex, &sysfs_inode_imutex_key); if (sd->s_iattr) { diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c index e503f858fba8..4305e460e205 100644 --- a/fs/sysfs/mount.c +++ b/fs/sysfs/mount.c @@ -29,6 +29,7 @@ static struct sysfs_dirent sysfs_root = { .s_element = NULL, .s_type = SYSFS_ROOT, .s_iattr = NULL, + .s_ino = 1, }; static int sysfs_fill_super(struct super_block *sb, void *data, int silent) diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h index 2129d1b6c874..8799dc3c92bd 100644 --- a/include/linux/sysfs.h +++ b/include/linux/sysfs.h @@ -73,6 +73,7 @@ struct sysfs_dirent { void * s_element; int s_type; umode_t s_mode; + ino_t s_ino; struct dentry * s_dentry; struct iattr * s_iattr; atomic_t s_event; |