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dnotify: use the mark in handler functions

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dnotify now gets a mark in the should_send_event and handle_event
functions.  Rather than look up the mark themselves dnotify should just use
the mark it was handed.

Signed-off-by: Eric Paris <eparis@redhat.com>
This commit is contained in:
Eric Paris 2010-07-28 10:18:38 -04:00
parent 7f6b6117e1
commit c496313fcc
1 changed files with 5 additions and 17 deletions
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22
fs/notify/dnotify/dnotify.c
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@ -86,7 +86,6 @@ static int dnotify_handle_event(struct fsnotify_group *group,
struct fsnotify_mark *mark, struct fsnotify_mark *mark,
struct fsnotify_event *event) struct fsnotify_event *event)
{ {
struct fsnotify_mark *fsn_mark = NULL;
struct dnotify_mark *dn_mark; struct dnotify_mark *dn_mark;
struct inode *to_tell; struct inode *to_tell;
struct dnotify_struct *dn; struct dnotify_struct *dn;
@ -96,12 +95,9 @@ static int dnotify_handle_event(struct fsnotify_group *group,
to_tell = event->to_tell; to_tell = event->to_tell;
fsn_mark = fsnotify_find_inode_mark(group, to_tell); dn_mark = container_of(mark, struct dnotify_mark, fsn_mark);
if (unlikely(!fsn_mark))
return 0;
dn_mark = container_of(fsn_mark, struct dnotify_mark, fsn_mark);
spin_lock(&fsn_mark->lock); spin_lock(&mark->lock);
prev = &dn_mark->dn; prev = &dn_mark->dn;
while ((dn = *prev) != NULL) { while ((dn = *prev) != NULL) {
if ((dn->dn_mask & test_mask) == 0) { if ((dn->dn_mask & test_mask) == 0) {
@ -115,12 +111,11 @@ static int dnotify_handle_event(struct fsnotify_group *group,
else { else {
*prev = dn->dn_next; *prev = dn->dn_next;
kmem_cache_free(dnotify_struct_cache, dn); kmem_cache_free(dnotify_struct_cache, dn);
dnotify_recalc_inode_mask(fsn_mark); dnotify_recalc_inode_mask(mark);
} }
} }
spin_unlock(&fsn_mark->lock); spin_unlock(&mark->lock);
fsnotify_put_mark(fsn_mark);
return 0; return 0;
} }
@ -134,7 +129,6 @@ static bool dnotify_should_send_event(struct fsnotify_group *group,
struct fsnotify_mark *mark, __u32 mask, struct fsnotify_mark *mark, __u32 mask,
void *data, int data_type) void *data, int data_type)
{ {
struct fsnotify_mark *fsn_mark;
bool send; bool send;
/* !dir_notify_enable should never get here, don't waste time checking /* !dir_notify_enable should never get here, don't waste time checking
@ -145,14 +139,8 @@ static bool dnotify_should_send_event(struct fsnotify_group *group,
if (!S_ISDIR(inode->i_mode)) if (!S_ISDIR(inode->i_mode))
return false; return false;
fsn_mark = fsnotify_find_inode_mark(group, inode);
if (!fsn_mark)
return false;
mask = (mask & ~FS_EVENT_ON_CHILD); mask = (mask & ~FS_EVENT_ON_CHILD);
send = (mask & fsn_mark->mask); send = (mask & mark->mask);
fsnotify_put_mark(fsn_mark); /* matches fsnotify_find_inode_mark */
return send; return send;
} }