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Diffstat (limited to 'kernel/fs/btrfs/reada.c')
-rw-r--r--kernel/fs/btrfs/reada.c12
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/fs/btrfs/reada.c b/kernel/fs/btrfs/reada.c
index 0e7beea92..619f92963 100644
--- a/kernel/fs/btrfs/reada.c
+++ b/kernel/fs/btrfs/reada.c
@@ -328,6 +328,7 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
struct btrfs_device *prev_dev;
u32 blocksize;
u64 length;
+ int real_stripes;
int nzones = 0;
int i;
unsigned long index = logical >> PAGE_CACHE_SHIFT;
@@ -369,7 +370,8 @@ static struct reada_extent *reada_find_extent(struct btrfs_root *root,
goto error;
}
- for (nzones = 0; nzones < bbio->num_stripes; ++nzones) {
+ real_stripes = bbio->num_stripes - bbio->num_tgtdevs;
+ for (nzones = 0; nzones < real_stripes; ++nzones) {
struct reada_zone *zone;
dev = bbio->stripes[nzones].dev;
@@ -567,7 +569,7 @@ static int reada_add_block(struct reada_control *rc, u64 logical,
rec = kzalloc(sizeof(*rec), GFP_NOFS);
if (!rec) {
reada_extent_put(root->fs_info, re);
- return -1;
+ return -ENOMEM;
}
rec->rc = rc;
@@ -916,6 +918,7 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root,
u64 start;
u64 generation;
int level;
+ int ret;
struct extent_buffer *node;
static struct btrfs_key max_key = {
.objectid = (u64)-1,
@@ -941,9 +944,10 @@ struct reada_control *btrfs_reada_add(struct btrfs_root *root,
generation = btrfs_header_generation(node);
free_extent_buffer(node);
- if (reada_add_block(rc, start, &max_key, level, generation)) {
+ ret = reada_add_block(rc, start, &max_key, level, generation);
+ if (ret) {
kfree(rc);
- return ERR_PTR(-ENOMEM);
+ return ERR_PTR(ret);
}
reada_start_machine(root->fs_info);