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authorNathan Chancellor <nathan@kernel.org>2022-03-24 08:36:45 -0700
committerDavid Sterba <dsterba@suse.com>2022-04-06 00:49:15 +0200
commit6d4a6b515c39f1f8763093e0f828959b2fbc2f45 (patch)
treecb614c89da0f95200842a9c3eb8d31fab9b5a480 /fs/btrfs/block-group.c
parent9435be734ae9de020072bd4443d46e02d92564d1 (diff)
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>
Diffstat (limited to 'fs/btrfs/block-group.c')
-rw-r--r--fs/btrfs/block-group.c4
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 {