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| author | Eric Paris <eparis@redhat.com> | 2009-12-17 20:12:05 -0500 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2010-07-28 09:58:17 -0400 |
| commit | 9e1c74321d87a8b079f04d89e750b39a43365e1f (patch) | |
| tree | 2513ce9eaa620b50c32be3dbe2763bcb692f99cb | |
| parent | a05fb6cc573130915380e00d182a4c6571cec6b2 (diff) | |
| download | linux-9e1c74321d87a8b079f04d89e750b39a43365e1f.tar.gz linux-9e1c74321d87a8b079f04d89e750b39a43365e1f.tar.bz2 linux-9e1c74321d87a8b079f04d89e750b39a43365e1f.zip | |
fsnotify: duplicate fsnotify_mark_entry data between 2 marks
Simple copy fsnotify information from one mark to another in preparation
for the second mark to replace the first.
Signed-off-by: Eric Paris <eparis@redhat.com>
| -rw-r--r-- | fs/notify/inode_mark.c | 10 | ||||
| -rw-r--r-- | include/linux/fsnotify_backend.h | 2 |
2 files changed, 11 insertions, 1 deletions
diff --git a/fs/notify/inode_mark.c b/fs/notify/inode_mark.c index 0399bcbe09c8..a13cf9e9233a 100644 --- a/fs/notify/inode_mark.c +++ b/fs/notify/inode_mark.c @@ -282,12 +282,20 @@ struct fsnotify_mark_entry *fsnotify_find_mark_entry(struct fsnotify_group *grou return NULL; } +void fsnotify_duplicate_mark(struct fsnotify_mark_entry *new, struct fsnotify_mark_entry *old) +{ + assert_spin_locked(&old->lock); + new->inode = old->inode; + new->group = old->group; + new->mask = old->mask; + new->free_mark = old->free_mark; +} + /* * Nothing fancy, just initialize lists and locks and counters. */ void fsnotify_init_mark(struct fsnotify_mark_entry *entry, void (*free_mark)(struct fsnotify_mark_entry *entry)) - { spin_lock_init(&entry->lock); atomic_set(&entry->refcnt, 1); diff --git a/include/linux/fsnotify_backend.h b/include/linux/fsnotify_backend.h index 8f8341e9f021..390516732956 100644 --- a/include/linux/fsnotify_backend.h +++ b/include/linux/fsnotify_backend.h @@ -342,6 +342,8 @@ extern void fsnotify_recalc_inode_mask(struct inode *inode); extern void fsnotify_init_mark(struct fsnotify_mark_entry *entry, void (*free_mark)(struct fsnotify_mark_entry *entry)); /* find (and take a reference) to a mark associated with group and inode */ extern struct fsnotify_mark_entry *fsnotify_find_mark_entry(struct fsnotify_group *group, struct inode *inode); +/* copy the values from old into new */ +extern void fsnotify_duplicate_mark(struct fsnotify_mark_entry *new, struct fsnotify_mark_entry *old); /* attach the mark to both the group and the inode */ extern int fsnotify_add_mark(struct fsnotify_mark_entry *entry, struct fsnotify_group *group, struct inode *inode); /* given a mark, flag it to be freed when all references are dropped */ |