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authorArnaldo Carvalho de Melo <acme@redhat.com>2012-05-18 13:13:33 -0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2012-05-18 13:13:33 -0300
commit16ee6576e25b83806d26eb771138249fcfb5eddc (patch)
tree7c717b80f28b5c59ba673dc00f2ca9bd0fc068d4 /fs/btrfs/file.c
parent16fa7e8200fb9066b77a3f27cbed8e4a9fc71998 (diff)
parent9b63776fa3ca96c4ecda76f6fa947b7b0add66ac (diff)
downloadlinux-16ee6576e25b83806d26eb771138249fcfb5eddc.tar.gz
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Merge remote-tracking branch 'tip/perf/urgent' into perf/core
Merge reason: We are going to queue up a dependent patch: "perf tools: Move parse event automated tests to separated object" That depends on: commit e7c72d8 perf tools: Add 'G' and 'H' modifiers to event parsing Conflicts: tools/perf/builtin-stat.c Conflicted with the recent 'perf_target' patches when checking the result of perf_evsel open routines to see if a retry is needed to cope with older kernels where the exclude guest/host perf_event_attr bits were not used. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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;
}