On Wed, 11 Apr 2007 19:13:59 +0900,
Tejun Heo <[email protected]> wrote:
> Does this patch fix the problem?
>
> Index: work/fs/sysfs/dir.c
> ===================================================================
> --- work.orig/fs/sysfs/dir.c 2007-04-11 19:12:02.000000000 +0900
> +++ work/fs/sysfs/dir.c 2007-04-11 19:12:12.000000000 +0900
> @@ -26,7 +26,8 @@ void release_sysfs_dirent(struct sysfs_d
> * locked. If @sd is cursor for directory walk or being
> * released prematurely, s_active has no reader or writer.
> */
> - down_write_trylock(&sd->s_active);
> + if (!down_write_trylock(&sd->s_active))
> + rwsem_acquire(&sd->s_active.dep_map, 0, 0, _RET_IP_);
> up_write(&sd->s_active);
>
> if (sd->s_type & SYSFS_KOBJ_LINK)
> Index: work/fs/sysfs/sysfs.h
> ===================================================================
> --- work.orig/fs/sysfs/sysfs.h 2007-04-11 19:12:02.000000000 +0900
> +++ work/fs/sysfs/sysfs.h 2007-04-11 19:12:03.000000000 +0900
> @@ -171,6 +171,7 @@ static inline void sysfs_put_active_two(
> static inline void sysfs_deactivate(struct sysfs_dirent *sd)
> {
> down_write(&sd->s_active);
> + rwsem_release(&sd->s_active.dep_map, 1, _RET_IP_);
> }
>
> static inline int sysfs_is_shadowed_inode(struct inode *inode)
This seems to work fine now, thanks.
-
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