[XFS] Ensure fsync does not incorrectly return EIO for pages beyond EOF.

[linux-2.6] / fs / inotify.c

diff --git a/fs/inotify.c b/fs/inotify.c
index 2fd97ef547ffcac2b35a3bcee5a37667b8e51ef4..9fbaebfdf40bef99428d0feaa50d9b69cba234d0 100644 (file)
--- a/fs/inotify.c
+++ b/fs/inotify.c
@@ -176,6 +176,7 @@ static inline void put_inotify_dev(struct inotify_device *dev)
        if (atomic_dec_and_test(&dev->count)) {
                atomic_dec(&dev->user->inotify_devs);
                free_uid(dev->user);
+               idr_destroy(&dev->idr);
                kfree(dev);
        }
 }
@@ -931,6 +932,7 @@ asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask)
        struct nameidata nd;
        struct file *filp;
        int ret, fput_needed;
+       int mask_add = 0;
 
        filp = fget_light(fd, &fput_needed);
        if (unlikely(!filp))
@@ -953,6 +955,9 @@ asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask)
        down(&inode->inotify_sem);
        down(&dev->sem);
 
+       if (mask & IN_MASK_ADD)
+               mask_add = 1;
+
        /* don't let user-space set invalid bits: we don't want flags set */
        mask &= IN_ALL_EVENTS;
        if (unlikely(!mask)) {
@@ -966,7 +971,10 @@ asmlinkage long sys_inotify_add_watch(int fd, const char __user *path, u32 mask)
         */
        old = inode_find_dev(inode, dev);
        if (unlikely(old)) {
-               old->mask = mask;
+               if (mask_add)
+                       old->mask |= mask;
+               else
+                       old->mask = mask;
                ret = old->wd;
                goto out;
        }