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yaml
---
r: 207674
b: refs/heads/master
c: 52202df
h: refs/heads/master
v: v3
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Andreas Gruenbacher authored and Eric Paris committed Jul 28, 2010
1 parent 4f475d8 commit 981cc92
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Showing 2 changed files with 17 additions and 21 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 912ee3946c5e57de0d05baf3b60b65ce6bf3ff96
refs/heads/master: 52202dfbd9107787dc68a2019cc7be4e79f52e5c
36 changes: 16 additions & 20 deletions trunk/fs/notify/fanotify/fanotify_user.c
Original file line number Diff line number Diff line change
Expand Up @@ -358,8 +358,8 @@ static __u32 fanotify_mark_add_to_mask(struct fsnotify_mark *fsn_mark, __u32 mas
return mask & ~oldmask;
}

static struct fsnotify_mark *fanotify_add_vfsmount_mark(struct fsnotify_group *group,
struct vfsmount *mnt, __u32 mask)
static int fanotify_add_vfsmount_mark(struct fsnotify_group *group,
struct vfsmount *mnt, __u32 mask)
{
struct fsnotify_mark *fsn_mark;
__u32 added;
Expand All @@ -370,27 +370,28 @@ static struct fsnotify_mark *fanotify_add_vfsmount_mark(struct fsnotify_group *g

fsn_mark = kmem_cache_alloc(fanotify_mark_cache, GFP_KERNEL);
if (!fsn_mark)
return ERR_PTR(-ENOMEM);
return -ENOMEM;

fsnotify_init_mark(fsn_mark, fanotify_free_mark);
ret = fsnotify_add_mark(fsn_mark, group, NULL, mnt, 0);
if (ret) {
fanotify_free_mark(fsn_mark);
return ERR_PTR(ret);
return ret;
}
}
added = fanotify_mark_add_to_mask(fsn_mark, mask);
fsnotify_put_mark(fsn_mark);
if (added) {
if (added & ~group->mask)
fsnotify_recalc_group_mask(group);
if (added & ~mnt->mnt_fsnotify_mask)
fsnotify_recalc_vfsmount_mask(mnt);
}
return fsn_mark;
return 0;
}

static struct fsnotify_mark *fanotify_add_inode_mark(struct fsnotify_group *group,
struct inode *inode, __u32 mask)
static int fanotify_add_inode_mark(struct fsnotify_group *group,
struct inode *inode, __u32 mask)
{
struct fsnotify_mark *fsn_mark;
__u32 added;
Expand All @@ -403,29 +404,30 @@ static struct fsnotify_mark *fanotify_add_inode_mark(struct fsnotify_group *grou

fsn_mark = kmem_cache_alloc(fanotify_mark_cache, GFP_KERNEL);
if (!fsn_mark)
return ERR_PTR(-ENOMEM);
return -ENOMEM;

fsnotify_init_mark(fsn_mark, fanotify_free_mark);
ret = fsnotify_add_mark(fsn_mark, group, inode, NULL, 0);
if (ret) {
fanotify_free_mark(fsn_mark);
return ERR_PTR(ret);
return ret;
}
}
added = fanotify_mark_add_to_mask(fsn_mark, mask);
fsnotify_put_mark(fsn_mark);
if (added) {
if (added & ~group->mask)
fsnotify_recalc_group_mask(group);
if (added & ~inode->i_fsnotify_mask)
fsnotify_recalc_inode_mask(inode);
}
return fsn_mark;
return 0;
}

static int fanotify_add_mark(struct fsnotify_group *group, struct inode *inode,
struct vfsmount *mnt, __u32 mask)
{
struct fsnotify_mark *fsn_mark;
int ret;

pr_debug("%s: group=%p inode=%p mnt=%p mask=%x\n",
__func__, group, inode, mnt, mask);
Expand All @@ -434,19 +436,13 @@ static int fanotify_add_mark(struct fsnotify_group *group, struct inode *inode,
BUG_ON(!inode && !mnt);

if (inode)
fsn_mark = fanotify_add_inode_mark(group, inode, mask);
ret = fanotify_add_inode_mark(group, inode, mask);
else if (mnt)
fsn_mark = fanotify_add_vfsmount_mark(group, mnt, mask);
ret = fanotify_add_vfsmount_mark(group, mnt, mask);
else
BUG();

if (IS_ERR(fsn_mark))
goto out;

/* match the init or the find.... */
fsnotify_put_mark(fsn_mark);
out:
return PTR_ERR(fsn_mark);
return ret;
}

static bool fanotify_mark_validate_input(int flags,
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