From: jeffm@suse.com
To: btrfs list <linux-btrfs@vger.kernel.org>
Cc: Chris Mason <chris.mason@oracle.com>
Subject: [patch v3 09/23] btrfs: btrfs_drop_snapshot should return int
Date: Thu, 08 Sep 2011 20:22:49 -0400 [thread overview]
Message-ID: <20110909002731.440205355@suse.com> (raw)
In-Reply-To: 20110909002240.141223014@suse.com
Commit cb1b69f4 (Btrfs: forced readonly when btrfs_drop_snapshot() fails)
made btrfs_drop_snapshot return void because there were no callers checking
the return value. That is the wrong order to handle error propogation since
the caller will have no idea that an error has occured and continue on
as if nothing went wrong.
The next patch checks the btrfs_drop_snapshot return values, so re-add it
here.
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
---
fs/btrfs/ctree.h | 4 ++--
fs/btrfs/extent-tree.c | 6 +++---
2 files changed, 5 insertions(+), 5 deletions(-)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2366,8 +2366,8 @@ static inline int btrfs_insert_empty_ite
int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path);
int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path);
int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf);
-void btrfs_drop_snapshot(struct btrfs_root *root,
- struct btrfs_block_rsv *block_rsv, int update_ref);
+int btrfs_drop_snapshot(struct btrfs_root *root,
+ struct btrfs_block_rsv *block_rsv, int update_ref);
int btrfs_drop_subtree(struct btrfs_trans_handle *trans,
struct btrfs_root *root,
struct extent_buffer *node,
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -6303,8 +6303,8 @@ static noinline int walk_up_tree(struct
* also make sure backrefs for the shared block and all lower level
* blocks are properly updated.
*/
-void btrfs_drop_snapshot(struct btrfs_root *root,
- struct btrfs_block_rsv *block_rsv, int update_ref)
+int btrfs_drop_snapshot(struct btrfs_root *root,
+ struct btrfs_block_rsv *block_rsv, int update_ref)
{
struct btrfs_path *path;
struct btrfs_trans_handle *trans;
@@ -6469,7 +6469,7 @@ out_free:
out:
if (err)
btrfs_std_error(root->fs_info, err);
- return;
+ return err;
}
/*
next prev parent reply other threads:[~2011-09-09 0:22 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-09 0:22 [patch v3 00/23] More error handling fixes jeffm
2011-09-09 0:22 ` [patch v3 01/23] btrfs: Add btrfs_panic() jeffm
2011-09-09 0:22 ` [patch v3 02/23] btrfs: Catch locking failures in {set,clear}_extent_bit jeffm
2011-09-09 0:22 ` [patch v3 03/23] btrfs: Push up set_extent_bit errors to callers jeffm
2011-09-09 0:22 ` [patch v3 04/23] btrfs: Push up lock_extent " jeffm
2011-09-09 0:22 ` [patch v3 05/23] btrfs: Push up clear_extent_bit " jeffm
2011-09-09 0:22 ` [patch v3 06/23] btrfs: Push up unlock_extent " jeffm
2011-09-09 0:22 ` [patch v3 07/23] btrfs: Make pin_down_extent return void jeffm
2011-09-09 0:22 ` [patch v3 08/23] btrfs: Push up btrfs_pin_extent failures jeffm
2011-09-09 0:22 ` jeffm [this message]
2011-09-09 0:22 ` [patch v3 10/23] btrfs: Push up non-looped btrfs_start_transaction failures jeffm
2011-09-09 0:22 ` [patch v3 11/23] btrfs: Make set_range_writeback return void jeffm
2011-09-09 0:22 ` [patch v3 12/23] btrfs: extent_io.c: Make functions with no error conditions " jeffm
2011-09-09 0:22 ` [patch v3 13/23] btrfs: volumes.c: " jeffm
2011-09-09 0:22 ` [patch v3 14/23] btrfs: async-thread.c: " jeffm
2011-09-09 0:22 ` [patch v3 15/23] btrfs: tree-log.c: " jeffm
2011-09-09 0:22 ` [patch v3 16/23] btrfs: Make btrfs_init_compress " jeffm
2011-09-09 0:22 ` [patch v3 17/23] btrfs: Make btrfs_invalidate_inodes " jeffm
2011-09-09 0:22 ` [patch v3 18/23] btrfs: disk-io.c: Make functions with no error conditions " jeffm
2011-09-09 0:22 ` [patch v3 19/23] btrfs: extent-tree.c: " jeffm
2011-09-09 0:23 ` [patch v3 20/23] btrfs: file.c: " jeffm
2011-09-09 0:23 ` [patch v3 21/23] btrfs: simplify btrfs_submit_bio_hook jeffm
2011-09-09 0:23 ` [patch v3 22/23] btrfs: Factor out tree->ops->merge_bio_hook call jeffm
2011-09-09 0:23 ` [patch v3 23/23] btrfs: Push up ->submit_bio_hook failures jeffm
2011-09-09 0:35 ` [patch v3 00/23] More error handling fixes Jeff Mahoney
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20110909002731.440205355@suse.com \
--to=jeffm@suse.com \
--cc=chris.mason@oracle.com \
--cc=linux-btrfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).