From 7c4b93d8269b9d35971a8239426b1f6ddc3d5ef7 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 21 Mar 2008 23:59:49 -0400 Subject: [PATCH] count ghost references to vfsmounts make propagate_mount_busy() exclude references from the vfsmounts that had been isolated by umount_tree() and are just waiting for release_mounts() to dispose of their ->mnt_parent/->mnt_mountpoint. Signed-off-by: Al Viro --- include/linux/mount.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include') diff --git a/include/linux/mount.h b/include/linux/mount.h index 6d3047d8c91c..dac5e67ff3ee 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -61,6 +61,7 @@ struct vfsmount { atomic_t mnt_count; int mnt_expiry_mark; /* true if marked for expiry */ int mnt_pinned; + int mnt_ghosts; }; static inline struct vfsmount *mntget(struct vfsmount *mnt) -- cgit v1.2.2 From c35038becad0adb0e25261fff66d85b1a6ddd0c2 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sat, 22 Mar 2008 00:46:23 -0400 Subject: [PATCH] do shrink_submounts() for all fs types ... and take it out of ->umount_begin() instances. Call with all locks already taken (by do_umount()) and leave calling release_mounts() to caller (it will do release_mounts() anyway, so we can just put into the same list). Signed-off-by: Al Viro --- include/linux/mount.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include') diff --git a/include/linux/mount.h b/include/linux/mount.h index dac5e67ff3ee..5ee2df217cdf 100644 --- a/include/linux/mount.h +++ b/include/linux/mount.h @@ -99,7 +99,6 @@ extern int do_add_mount(struct vfsmount *newmnt, struct nameidata *nd, int mnt_flags, struct list_head *fslist); extern void mark_mounts_for_expiry(struct list_head *mounts); -extern void shrink_submounts(struct vfsmount *mountpoint, struct list_head *mounts); extern spinlock_t vfsmount_lock; extern dev_t name_to_dev_t(char *name); -- cgit v1.2.2