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Message-ID: <20091027191018.27472.61371.stgit@paris.rdu.redhat.com>
Date: Tue, 27 Oct 2009 15:10:18 -0400
From: Eric Paris <eparis@...hat.com>
To: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Cc: agruen@...e.de
Subject: [PATCH 5/6] inotify: rename mark_entry to just mark
rename anything in inotify that deals with mark_entry to just be mark. It
makes a lot more sense.
Signed-off-by: Eric Paris <eparis@...hat.com>
---
fs/notify/inotify/inotify.h | 7 +
fs/notify/inotify/inotify_fsnotify.c | 48 ++++-----
fs/notify/inotify/inotify_user.c | 192 +++++++++++++++++-----------------
3 files changed, 123 insertions(+), 124 deletions(-)
diff --git a/fs/notify/inotify/inotify.h b/fs/notify/inotify/inotify.h
index 07be6df..b6642e4 100644
--- a/fs/notify/inotify/inotify.h
+++ b/fs/notify/inotify/inotify.h
@@ -9,13 +9,12 @@ struct inotify_event_private_data {
int wd;
};
-struct inotify_inode_mark_entry {
- /* fsnotify_mark MUST be the first thing */
- struct fsnotify_mark fsn_entry;
+struct inotify_inode_mark {
+ struct fsnotify_mark fsn_mark;
int wd;
};
-extern void inotify_ignored_and_remove_idr(struct fsnotify_mark *entry,
+extern void inotify_ignored_and_remove_idr(struct fsnotify_mark *fsn_mark,
struct fsnotify_group *group);
extern void inotify_free_event_priv(struct fsnotify_event_private_data *event_priv);
diff --git a/fs/notify/inotify/inotify_fsnotify.c b/fs/notify/inotify/inotify_fsnotify.c
index 94954c1..0156e27 100644
--- a/fs/notify/inotify/inotify_fsnotify.c
+++ b/fs/notify/inotify/inotify_fsnotify.c
@@ -87,8 +87,8 @@ static int inotify_merge(struct list_head *list, struct fsnotify_event *event)
static int inotify_handle_event(struct fsnotify_group *group, struct fsnotify_event *event)
{
- struct fsnotify_mark *entry;
- struct inotify_inode_mark_entry *ientry;
+ struct fsnotify_mark *fsn_mark;
+ struct inotify_inode_mark *i_mark;
struct inode *to_tell;
struct inotify_event_private_data *event_priv;
struct fsnotify_event_private_data *fsn_event_priv;
@@ -97,14 +97,14 @@ static int inotify_handle_event(struct fsnotify_group *group, struct fsnotify_ev
to_tell = event->to_tell;
spin_lock(&to_tell->i_lock);
- entry = fsnotify_find_mark(group, to_tell);
+ fsn_mark = fsnotify_find_mark(group, to_tell);
spin_unlock(&to_tell->i_lock);
/* race with watch removal? We already passes should_send */
- if (unlikely(!entry))
+ if (unlikely(!fsn_mark))
return 0;
- ientry = container_of(entry, struct inotify_inode_mark_entry,
- fsn_entry);
- wd = ientry->wd;
+ i_mark = container_of(fsn_mark, struct inotify_inode_mark,
+ fsn_mark);
+ wd = i_mark->wd;
event_priv = kmem_cache_alloc(event_priv_cachep, GFP_KERNEL);
if (unlikely(!event_priv))
@@ -126,37 +126,37 @@ static int inotify_handle_event(struct fsnotify_group *group, struct fsnotify_ev
}
/*
- * If we hold the entry until after the event is on the queue
+ * If we hold the fsn_mark until after the event is on the queue
* IN_IGNORED won't be able to pass this event in the queue
*/
- fsnotify_put_mark(entry);
+ fsnotify_put_mark(fsn_mark);
return ret;
}
-static void inotify_freeing_mark(struct fsnotify_mark *entry, struct fsnotify_group *group)
+static void inotify_freeing_mark(struct fsnotify_mark *fsn_mark, struct fsnotify_group *group)
{
- inotify_ignored_and_remove_idr(entry, group);
+ inotify_ignored_and_remove_idr(fsn_mark, group);
}
static bool inotify_should_send_event(struct fsnotify_group *group, struct inode *inode,
struct vfsmount *mnt, __u32 mask, void *data,
int data_type)
{
- struct fsnotify_mark *entry;
+ struct fsnotify_mark *fsn_mark;
bool send;
spin_lock(&inode->i_lock);
- entry = fsnotify_find_mark(group, inode);
+ fsn_mark = fsnotify_find_mark(group, inode);
spin_unlock(&inode->i_lock);
- if (!entry)
+ if (!fsn_mark)
return false;
mask = (mask & ~FS_EVENT_ON_CHILD);
- send = (entry->mask & mask);
+ send = (fsn_mark->mask & mask);
/* find took a reference */
- fsnotify_put_mark(entry);
+ fsnotify_put_mark(fsn_mark);
return send;
}
@@ -170,18 +170,18 @@ static bool inotify_should_send_event(struct fsnotify_group *group, struct inode
*/
static int idr_callback(int id, void *p, void *data)
{
- struct fsnotify_mark *entry;
- struct inotify_inode_mark_entry *ientry;
+ struct fsnotify_mark *fsn_mark;
+ struct inotify_inode_mark *i_mark;
static bool warned = false;
if (warned)
return 0;
warned = false;
- entry = p;
- ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry);
+ fsn_mark = p;
+ i_mark = container_of(fsn_mark, struct inotify_inode_mark, fsn_mark);
- WARN(1, "inotify closing but id=%d for entry=%p in group=%p still in "
+ WARN(1, "inotify closing but id=%d for fsn_mark=%p in group=%p still in "
"idr. Probably leaking memory\n", id, p, data);
/*
@@ -190,9 +190,9 @@ static int idr_callback(int id, void *p, void *data)
* out why we got here and the panic is no worse than the original
* BUG() that was here.
*/
- if (entry)
- printk(KERN_WARNING "entry->group=%p inode=%p wd=%d\n",
- entry->group, entry->i.inode, ientry->wd);
+ if (fsn_mark)
+ printk(KERN_WARNING "fsn_mark->group=%p inode=%p wd=%d\n",
+ fsn_mark->group, fsn_mark->i.inode, i_mark->wd);
return 0;
}
diff --git a/fs/notify/inotify/inotify_user.c b/fs/notify/inotify/inotify_user.c
index 4733e50..974bc59 100644
--- a/fs/notify/inotify/inotify_user.c
+++ b/fs/notify/inotify/inotify_user.c
@@ -363,7 +363,7 @@ static int inotify_find_inode(const char __user *dirname, struct path *path, uns
static int inotify_add_to_idr(struct idr *idr, spinlock_t *idr_lock,
int last_wd,
- struct inotify_inode_mark_entry *ientry)
+ struct inotify_inode_mark *i_mark)
{
int ret;
@@ -372,64 +372,64 @@ static int inotify_add_to_idr(struct idr *idr, spinlock_t *idr_lock,
return -ENOMEM;
spin_lock(idr_lock);
- ret = idr_get_new_above(idr, ientry, last_wd + 1,
- &ientry->wd);
+ ret = idr_get_new_above(idr, i_mark, last_wd + 1,
+ &i_mark->wd);
/* we added the mark to the idr, take a reference */
if (!ret)
- fsnotify_get_mark(&ientry->fsn_entry);
+ fsnotify_get_mark(&i_mark->fsn_mark);
spin_unlock(idr_lock);
} while (ret == -EAGAIN);
return ret;
}
-static struct inotify_inode_mark_entry *inotify_idr_find_locked(struct fsnotify_group *group,
+static struct inotify_inode_mark *inotify_idr_find_locked(struct fsnotify_group *group,
int wd)
{
struct idr *idr = &group->inotify_data.idr;
spinlock_t *idr_lock = &group->inotify_data.idr_lock;
- struct inotify_inode_mark_entry *ientry;
+ struct inotify_inode_mark *i_mark;
assert_spin_locked(idr_lock);
- ientry = idr_find(idr, wd);
- if (ientry) {
- struct fsnotify_mark *fsn_entry = &ientry->fsn_entry;
+ i_mark = idr_find(idr, wd);
+ if (i_mark) {
+ struct fsnotify_mark *fsn_mark = &i_mark->fsn_mark;
- fsnotify_get_mark(fsn_entry);
+ fsnotify_get_mark(fsn_mark);
/* One ref for being in the idr, one ref we just took */
- BUG_ON(atomic_read(&fsn_entry->refcnt) < 2);
+ BUG_ON(atomic_read(&fsn_mark->refcnt) < 2);
}
- return ientry;
+ return i_mark;
}
-static struct inotify_inode_mark_entry *inotify_idr_find(struct fsnotify_group *group,
+static struct inotify_inode_mark *inotify_idr_find(struct fsnotify_group *group,
int wd)
{
- struct inotify_inode_mark_entry *ientry;
+ struct inotify_inode_mark *i_mark;
spinlock_t *idr_lock = &group->inotify_data.idr_lock;
spin_lock(idr_lock);
- ientry = inotify_idr_find_locked(group, wd);
+ i_mark = inotify_idr_find_locked(group, wd);
spin_unlock(idr_lock);
- return ientry;
+ return i_mark;
}
static void do_inotify_remove_from_idr(struct fsnotify_group *group,
- struct inotify_inode_mark_entry *ientry)
+ struct inotify_inode_mark *i_mark)
{
struct idr *idr = &group->inotify_data.idr;
spinlock_t *idr_lock = &group->inotify_data.idr_lock;
- int wd = ientry->wd;
+ int wd = i_mark->wd;
assert_spin_locked(idr_lock);
idr_remove(idr, wd);
/* removed from the idr, drop that ref */
- fsnotify_put_mark(&ientry->fsn_entry);
+ fsnotify_put_mark(&i_mark->fsn_mark);
}
/*
@@ -437,51 +437,51 @@ static void do_inotify_remove_from_idr(struct fsnotify_group *group,
* on the mark because it was in the idr.
*/
static void inotify_remove_from_idr(struct fsnotify_group *group,
- struct inotify_inode_mark_entry *ientry)
+ struct inotify_inode_mark *i_mark)
{
spinlock_t *idr_lock = &group->inotify_data.idr_lock;
- struct inotify_inode_mark_entry *found_ientry = NULL;
+ struct inotify_inode_mark *found_i_mark = NULL;
int wd;
spin_lock(idr_lock);
- wd = ientry->wd;
+ wd = i_mark->wd;
/*
- * does this ientry think it is in the idr? we shouldn't get called
+ * does this i_mark think it is in the idr? we shouldn't get called
* if it wasn't....
*/
if (wd == -1) {
- printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p"
- " ientry->inode=%p\n", __func__, ientry, ientry->wd,
- ientry->fsn_entry.group, ientry->fsn_entry.i.inode);
+ printk(KERN_WARNING "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p"
+ " i_mark->inode=%p\n", __func__, i_mark, i_mark->wd,
+ i_mark->fsn_mark.group, i_mark->fsn_mark.i.inode);
WARN_ON(1);
goto out;
}
/* Lets look in the idr to see if we find it */
- found_ientry = inotify_idr_find_locked(group, wd);
- if (unlikely(!found_ientry)) {
- printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p"
- " ientry->inode=%p\n", __func__, ientry, ientry->wd,
- ientry->fsn_entry.group, ientry->fsn_entry.i.inode);
+ found_i_mark = inotify_idr_find_locked(group, wd);
+ if (unlikely(!found_i_mark)) {
+ printk(KERN_WARNING "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p"
+ " i_mark->inode=%p\n", __func__, i_mark, i_mark->wd,
+ i_mark->fsn_mark.group, i_mark->fsn_mark.i.inode);
WARN_ON(1);
goto out;
}
/*
- * We found an entry in the idr at the right wd, but it's
- * not the entry we were told to remove. eparis seriously
+ * We found an mark in the idr at the right wd, but it's
+ * not the mark we were told to remove. eparis seriously
* fucked up somewhere.
*/
- if (unlikely(found_ientry != ientry)) {
+ if (unlikely(found_i_mark != i_mark)) {
WARN_ON(1);
- printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p "
- "entry->inode=%p found_ientry=%p found_ientry->wd=%d "
- "found_ientry->group=%p found_ientry->inode=%p\n",
- __func__, ientry, ientry->wd, ientry->fsn_entry.group,
- ientry->fsn_entry.i.inode, found_ientry, found_ientry->wd,
- found_ientry->fsn_entry.group,
- found_ientry->fsn_entry.i.inode);
+ printk(KERN_WARNING "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p "
+ "mark->inode=%p found_i_mark=%p found_i_mark->wd=%d "
+ "found_i_mark->group=%p found_i_mark->inode=%p\n",
+ __func__, i_mark, i_mark->wd, i_mark->fsn_mark.group,
+ i_mark->fsn_mark.i.inode, found_i_mark, found_i_mark->wd,
+ found_i_mark->fsn_mark.group,
+ found_i_mark->fsn_mark.i.inode);
goto out;
}
@@ -490,30 +490,30 @@ static void inotify_remove_from_idr(struct fsnotify_group *group,
* one ref held by the caller trying to kill us
* one ref grabbed by inotify_idr_find
*/
- if (unlikely(atomic_read(&ientry->fsn_entry.refcnt) < 3)) {
- printk(KERN_WARNING "%s: ientry=%p ientry->wd=%d ientry->group=%p"
- " ientry->inode=%p\n", __func__, ientry, ientry->wd,
- ientry->fsn_entry.group, ientry->fsn_entry.i.inode);
+ if (unlikely(atomic_read(&i_mark->fsn_mark.refcnt) < 3)) {
+ printk(KERN_WARNING "%s: i_mark=%p i_mark->wd=%d i_mark->group=%p"
+ " i_mark->inode=%p\n", __func__, i_mark, i_mark->wd,
+ i_mark->fsn_mark.group, i_mark->fsn_mark.i.inode);
/* we can't really recover with bad ref cnting.. */
BUG();
}
- do_inotify_remove_from_idr(group, ientry);
+ do_inotify_remove_from_idr(group, i_mark);
out:
/* match the ref taken by inotify_idr_find_locked() */
- if (found_ientry)
- fsnotify_put_mark(&found_ientry->fsn_entry);
- ientry->wd = -1;
+ if (found_i_mark)
+ fsnotify_put_mark(&found_i_mark->fsn_mark);
+ i_mark->wd = -1;
spin_unlock(idr_lock);
}
/*
* Send IN_IGNORED for this wd, remove this wd from the idr.
*/
-void inotify_ignored_and_remove_idr(struct fsnotify_mark *entry,
+void inotify_ignored_and_remove_idr(struct fsnotify_mark *fsn_mark,
struct fsnotify_group *group)
{
- struct inotify_inode_mark_entry *ientry;
+ struct inotify_inode_mark *i_mark;
struct fsnotify_event *ignored_event;
struct inotify_event_private_data *event_priv;
struct fsnotify_event_private_data *fsn_event_priv;
@@ -525,7 +525,7 @@ void inotify_ignored_and_remove_idr(struct fsnotify_mark *entry,
if (!ignored_event)
return;
- ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry);
+ i_mark = container_of(fsn_mark, struct inotify_inode_mark, fsn_mark);
event_priv = kmem_cache_alloc(event_priv_cachep, GFP_NOFS);
if (unlikely(!event_priv))
@@ -534,7 +534,7 @@ void inotify_ignored_and_remove_idr(struct fsnotify_mark *entry,
fsn_event_priv = &event_priv->fsnotify_event_priv_data;
fsn_event_priv->group = group;
- event_priv->wd = ientry->wd;
+ event_priv->wd = i_mark->wd;
ret = fsnotify_add_notify_event(group, ignored_event, fsn_event_priv, NULL);
if (ret)
@@ -545,28 +545,28 @@ skip_send_ignore:
/* matches the reference taken when the event was created */
fsnotify_put_event(ignored_event);
- /* remove this entry from the idr */
- inotify_remove_from_idr(group, ientry);
+ /* remove this mark from the idr */
+ inotify_remove_from_idr(group, i_mark);
atomic_dec(&group->inotify_data.user->inotify_watches);
}
/* ding dong the mark is dead */
-static void inotify_free_mark(struct fsnotify_mark *entry)
+static void inotify_free_mark(struct fsnotify_mark *fsn_mark)
{
- struct inotify_inode_mark_entry *ientry;
+ struct inotify_inode_mark *i_mark;
- ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry);
+ i_mark = container_of(fsn_mark, struct inotify_inode_mark, fsn_mark);
- kmem_cache_free(inotify_inode_mark_cachep, ientry);
+ kmem_cache_free(inotify_inode_mark_cachep, i_mark);
}
static int inotify_update_existing_watch(struct fsnotify_group *group,
struct inode *inode,
u32 arg)
{
- struct fsnotify_mark *entry;
- struct inotify_inode_mark_entry *ientry;
+ struct fsnotify_mark *fsn_mark;
+ struct inotify_inode_mark *i_mark;
__u32 old_mask, new_mask;
__u32 mask;
int add = (arg & IN_MASK_ADD);
@@ -578,35 +578,35 @@ static int inotify_update_existing_watch(struct fsnotify_group *group,
return -EINVAL;
spin_lock(&inode->i_lock);
- entry = fsnotify_find_mark(group, inode);
+ fsn_mark = fsnotify_find_mark(group, inode);
spin_unlock(&inode->i_lock);
- if (!entry)
+ if (!fsn_mark)
return -ENOENT;
- ientry = container_of(entry, struct inotify_inode_mark_entry, fsn_entry);
+ i_mark = container_of(fsn_mark, struct inotify_inode_mark, fsn_mark);
- spin_lock(&entry->lock);
+ spin_lock(&fsn_mark->lock);
- old_mask = entry->mask;
+ old_mask = fsn_mark->mask;
if (add) {
- entry->mask |= mask;
- new_mask = entry->mask;
+ fsn_mark->mask |= mask;
+ new_mask = fsn_mark->mask;
} else {
- entry->mask = mask;
- new_mask = entry->mask;
+ fsn_mark->mask = mask;
+ new_mask = fsn_mark->mask;
}
- spin_unlock(&entry->lock);
+ spin_unlock(&fsn_mark->lock);
if (old_mask != new_mask) {
/* more bits in old than in new? */
int dropped = (old_mask & ~new_mask);
- /* more bits in this entry than the inode's mask? */
+ /* more bits in this fsn_mark than the inode's mask? */
int do_inode = (new_mask & ~inode->i_fsnotify_mask);
- /* more bits in this entry than the group? */
+ /* more bits in this fsn_mark than the group? */
int do_group = (new_mask & ~group->mask);
- /* update the inode with this new entry */
+ /* update the inode with this new fsn_mark */
if (dropped || do_inode)
fsnotify_recalc_inode_mask(inode);
@@ -616,10 +616,10 @@ static int inotify_update_existing_watch(struct fsnotify_group *group,
}
/* return the wd */
- ret = ientry->wd;
+ ret = i_mark->wd;
/* match the get from fsnotify_find_mark() */
- fsnotify_put_mark(entry);
+ fsnotify_put_mark(fsn_mark);
return ret;
}
@@ -628,7 +628,7 @@ static int inotify_new_watch(struct fsnotify_group *group,
struct inode *inode,
u32 arg)
{
- struct inotify_inode_mark_entry *tmp_ientry;
+ struct inotify_inode_mark *tmp_i_mark;
__u32 mask;
int ret;
struct idr *idr = &group->inotify_data.idr;
@@ -639,47 +639,47 @@ static int inotify_new_watch(struct fsnotify_group *group,
if (unlikely(!mask))
return -EINVAL;
- tmp_ientry = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL);
- if (unlikely(!tmp_ientry))
+ tmp_i_mark = kmem_cache_alloc(inotify_inode_mark_cachep, GFP_KERNEL);
+ if (unlikely(!tmp_i_mark))
return -ENOMEM;
- fsnotify_init_mark(&tmp_ientry->fsn_entry, inotify_free_mark);
- tmp_ientry->fsn_entry.mask = mask;
- tmp_ientry->wd = -1;
+ fsnotify_init_mark(&tmp_i_mark->fsn_mark, inotify_free_mark);
+ tmp_i_mark->fsn_mark.mask = mask;
+ tmp_i_mark->wd = -1;
ret = -ENOSPC;
if (atomic_read(&group->inotify_data.user->inotify_watches) >= inotify_max_user_watches)
goto out_err;
ret = inotify_add_to_idr(idr, idr_lock, group->inotify_data.last_wd,
- tmp_ientry);
+ tmp_i_mark);
if (ret)
goto out_err;
/* we are on the idr, now get on the inode */
- ret = fsnotify_add_mark(&tmp_ientry->fsn_entry, group, inode, 0);
+ ret = fsnotify_add_mark(&tmp_i_mark->fsn_mark, group, inode, 0);
if (ret) {
/* we failed to get on the inode, get off the idr */
- inotify_remove_from_idr(group, tmp_ientry);
+ inotify_remove_from_idr(group, tmp_i_mark);
goto out_err;
}
/* update the idr hint, who cares about races, it's just a hint */
- group->inotify_data.last_wd = tmp_ientry->wd;
+ group->inotify_data.last_wd = tmp_i_mark->wd;
/* increment the number of watches the user has */
atomic_inc(&group->inotify_data.user->inotify_watches);
- /* return the watch descriptor for this new entry */
- ret = tmp_ientry->wd;
+ /* return the watch descriptor for this new mark */
+ ret = tmp_i_mark->wd;
/* if this mark added a new event update the group mask */
if (mask & ~group->mask)
fsnotify_recalc_group_mask(group);
out_err:
- /* match the ref from fsnotify_init_markentry() */
- fsnotify_put_mark(&tmp_ientry->fsn_entry);
+ /* match the ref from fsnotify_init_mark() */
+ fsnotify_put_mark(&tmp_i_mark->fsn_mark);
return ret;
}
@@ -839,7 +839,7 @@ fput_and_out:
SYSCALL_DEFINE2(inotify_rm_watch, int, fd, __s32, wd)
{
struct fsnotify_group *group;
- struct inotify_inode_mark_entry *ientry;
+ struct inotify_inode_mark *i_mark;
struct file *filp;
int ret = 0, fput_needed;
@@ -855,16 +855,16 @@ SYSCALL_DEFINE2(inotify_rm_watch, int, fd, __s32, wd)
group = filp->private_data;
ret = -EINVAL;
- ientry = inotify_idr_find(group, wd);
- if (unlikely(!ientry))
+ i_mark = inotify_idr_find(group, wd);
+ if (unlikely(!i_mark))
goto out;
ret = 0;
- fsnotify_destroy_mark(&ientry->fsn_entry);
+ fsnotify_destroy_mark(&i_mark->fsn_mark);
/* match ref taken by inotify_idr_find */
- fsnotify_put_mark(&ientry->fsn_entry);
+ fsnotify_put_mark(&i_mark->fsn_mark);
out:
fput_light(filp, fput_needed);
@@ -902,7 +902,7 @@ static int __init inotify_user_setup(void)
if (IS_ERR(inotify_mnt))
panic("inotify: kern_mount ret %ld!\n", PTR_ERR(inotify_mnt));
- inotify_inode_mark_cachep = KMEM_CACHE(inotify_inode_mark_entry, SLAB_PANIC);
+ inotify_inode_mark_cachep = KMEM_CACHE(inotify_inode_mark, SLAB_PANIC);
event_priv_cachep = KMEM_CACHE(inotify_event_private_data, SLAB_PANIC);
inotify_max_queued_events = 16384;
--
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