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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-10 11:12:55 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-02-10 11:13:53 -0800
commit7483948fdd31a8642ef0288aab6f368b98d53c29 (patch)
tree031020a5553701d2aae8dddb0fa509aa65854eb1 /fs/btrfs/inode.c
parent22a416c4e0f2179b57028e084ac0ed2c110333bd (diff)
parentfe250923bbbbcbccc9aa7b84d05ee7a060450534 (diff)
Merge tag 'usb-3.3-rc3' into usb-next
This is done to resolve a merge conflict with: drivers/usb/class/cdc-wdm.c and to better handle future patches for this driver as it is under active development at the moment. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/btrfs/inode.c')
-rw-r--r--fs/btrfs/inode.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 0da19a0ea00..32214fe0f7e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6401,18 +6401,23 @@ int btrfs_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
unsigned long zero_start;
loff_t size;
int ret;
+ int reserved = 0;
u64 page_start;
u64 page_end;
ret = btrfs_delalloc_reserve_space(inode, PAGE_CACHE_SIZE);
- if (!ret)
+ if (!ret) {
ret = btrfs_update_time(vma->vm_file);
+ reserved = 1;
+ }
if (ret) {
if (ret == -ENOMEM)
ret = VM_FAULT_OOM;
else /* -ENOSPC, -EIO, etc */
ret = VM_FAULT_SIGBUS;
- goto out;
+ if (reserved)
+ goto out;
+ goto out_noreserve;
}
ret = VM_FAULT_NOPAGE; /* make the VM retry the fault */
@@ -6495,6 +6500,7 @@ out_unlock:
unlock_page(page);
out:
btrfs_delalloc_release_space(inode, PAGE_CACHE_SIZE);
+out_noreserve:
return ret;
}