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authorJames Morris <james.l.morris@oracle.com>2012-05-04 04:46:40 +0200
committerJames Morris <james.l.morris@oracle.com>2012-05-04 04:46:40 +0200
commit898bfc1d46bd76f8ea2a0fbd239dd2073efe2aa3 (patch)
treee6e666085abe674dbf6292555961fe0a0f2e2d2f /fs/btrfs/file.c
parentYama: remove an unused variable (diff)
parentLinux 3.4-rc5 (diff)
downloadlinux-898bfc1d46bd76f8ea2a0fbd239dd2073efe2aa3.tar.xz
linux-898bfc1d46bd76f8ea2a0fbd239dd2073efe2aa3.zip
Merge tag 'v3.4-rc5' into next
Linux 3.4-rc5 Merge to pull in prerequisite change for Smack: 86812bb0de1a3758dc6c7aa01a763158a7c0638a Requested by Casey.
Diffstat (limited to 'fs/btrfs/file.c')
-rw-r--r--fs/btrfs/file.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index d83260d7498f..53bf2d764bbc 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -567,6 +567,7 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
int extent_type;
int recow;
int ret;
+ int modify_tree = -1;
if (drop_cache)
btrfs_drop_extent_cache(inode, start, end - 1, 0);
@@ -575,10 +576,13 @@ int btrfs_drop_extents(struct btrfs_trans_handle *trans, struct inode *inode,
if (!path)
return -ENOMEM;
+ if (start >= BTRFS_I(inode)->disk_i_size)
+ modify_tree = 0;
+
while (1) {
recow = 0;
ret = btrfs_lookup_file_extent(trans, root, path, ino,
- search_start, -1);
+ search_start, modify_tree);
if (ret < 0)
break;
if (ret > 0 && path->slots[0] > 0 && search_start == start) {
@@ -634,7 +638,8 @@ next_slot:
}
search_start = max(key.offset, start);
- if (recow) {
+ if (recow || !modify_tree) {
+ modify_tree = -1;
btrfs_release_path(path);
continue;
}