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| author | Nathan Chancellor <nathan@kernel.org> | 2022-03-24 08:36:45 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2022-04-06 00:49:15 +0200 |
| commit | 6d4a6b515c39f1f8763093e0f828959b2fbc2f45 (patch) | |
| tree | cb614c89da0f95200842a9c3eb8d31fab9b5a480 | |
| parent | 9435be734ae9de020072bd4443d46e02d92564d1 (diff) | |
| download | linux-6d4a6b515c39f1f8763093e0f828959b2fbc2f45.tar.gz linux-6d4a6b515c39f1f8763093e0f828959b2fbc2f45.tar.bz2 linux-6d4a6b515c39f1f8763093e0f828959b2fbc2f45.zip | |
btrfs: remove unused variable in btrfs_{start,write}_dirty_block_groups()
Clang's version of -Wunused-but-set-variable recently gained support for
unary operations, which reveals two unused variables:
fs/btrfs/block-group.c:2949:6: error: variable 'num_started' set but not used [-Werror,-Wunused-but-set-variable]
int num_started = 0;
^
fs/btrfs/block-group.c:3116:6: error: variable 'num_started' set but not used [-Werror,-Wunused-but-set-variable]
int num_started = 0;
^
2 errors generated.
These variables appear to be unused from their introduction, so just
remove them to silence the warnings.
Fixes: c9dc4c657850 ("Btrfs: two stage dirty block group writeout")
Fixes: 1bbc621ef284 ("Btrfs: allow block group cache writeout outside critical section in commit")
CC: stable@vger.kernel.org # 5.4+
Link: https://github.com/ClangBuiltLinux/linux/issues/1614
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: David Sterba <dsterba@suse.com>
| -rw-r--r-- | fs/btrfs/block-group.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c index c22d287e020b..9ad265066225 100644 --- a/fs/btrfs/block-group.c +++ b/fs/btrfs/block-group.c @@ -2946,7 +2946,6 @@ int btrfs_start_dirty_block_groups(struct btrfs_trans_handle *trans) struct btrfs_path *path = NULL; LIST_HEAD(dirty); struct list_head *io = &cur_trans->io_bgs; - int num_started = 0; int loops = 0; spin_lock(&cur_trans->dirty_bgs_lock); @@ -3012,7 +3011,6 @@ again: cache->io_ctl.inode = NULL; ret = btrfs_write_out_cache(trans, cache, path); if (ret == 0 && cache->io_ctl.inode) { - num_started++; should_put = 0; /* @@ -3113,7 +3111,6 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans) int should_put; struct btrfs_path *path; struct list_head *io = &cur_trans->io_bgs; - int num_started = 0; path = btrfs_alloc_path(); if (!path) @@ -3171,7 +3168,6 @@ int btrfs_write_dirty_block_groups(struct btrfs_trans_handle *trans) cache->io_ctl.inode = NULL; ret = btrfs_write_out_cache(trans, cache, path); if (ret == 0 && cache->io_ctl.inode) { - num_started++; should_put = 0; list_add_tail(&cache->io_list, io); } else { |