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authorDavid Sterba <dsterba@suse.com>2025-06-09 19:09:30 +0200
committerDavid Sterba <dsterba@suse.com>2025-07-21 23:56:39 +0200
commit2f3f1ad7f1792d0a6535a2da39d114a12902588d (patch)
treebf1a83efb558d311ad9c98f78d2789efcbd51f60
parentf9095103f2db15d791706191819d42224610d542 (diff)
btrfs: simplify debug print helpers without enabled printk
The btrfs_debug() helpers depend on various config options. In case of "no_printk" we don't need to define a special helper that in the end does nothing but validates the parameters. As the default build config is to validate the parameters we can simplify it to let the debug helpers expand to nothing and remove btrfs_no_printk_in_rcu(). To avoid warnings use fs_info and inline one variable in extent_from_logical(). Reviewed-by: Daniel Vacek <neelx@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
-rw-r--r--fs/btrfs/backref.c4
-rw-r--r--fs/btrfs/messages.h14
2 files changed, 4 insertions, 14 deletions
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index bebef4bd0c65..2e0d959092f5 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -2201,7 +2201,6 @@ int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical,
int ret;
u64 flags;
u64 size = 0;
- u32 item_size;
const struct extent_buffer *eb;
struct btrfs_extent_item *ei;
struct btrfs_key key;
@@ -2244,7 +2243,6 @@ int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical,
}
eb = path->nodes[0];
- item_size = btrfs_item_size(eb, path->slots[0]);
ei = btrfs_item_ptr(eb, path->slots[0], struct btrfs_extent_item);
flags = btrfs_extent_flags(eb, ei);
@@ -2252,7 +2250,7 @@ int extent_from_logical(struct btrfs_fs_info *fs_info, u64 logical,
btrfs_debug(fs_info,
"logical %llu is at position %llu within the extent (%llu EXTENT_ITEM %llu) flags %#llx size %u",
logical, logical - found_key->objectid, found_key->objectid,
- found_key->offset, flags, item_size);
+ found_key->offset, flags, btrfs_item_size(eb, path->slots[0]));
WARN_ON(!flags_ret);
if (flags_ret) {
diff --git a/fs/btrfs/messages.h b/fs/btrfs/messages.h
index 9b78600efe0e..483524fccdc0 100644
--- a/fs/btrfs/messages.h
+++ b/fs/btrfs/messages.h
@@ -74,10 +74,9 @@ void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
#define btrfs_debug_rl(fs_info, fmt, args...) \
btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
#else
-#define btrfs_debug(fs_info, fmt, args...) \
- btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
-#define btrfs_debug_rl(fs_info, fmt, args...) \
- btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
+/* When printk() is no_printk(), expand to no-op. */
+#define btrfs_debug(fs_info, fmt, args...) do { (void)(fs_info); } while(0)
+#define btrfs_debug_rl(fs_info, fmt, args...) do { (void)(fs_info); } while(0)
#endif
#define btrfs_printk_in_rcu(fs_info, fmt, args...) \
@@ -87,13 +86,6 @@ do { \
rcu_read_unlock(); \
} while (0)
-#define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \
-do { \
- rcu_read_lock(); \
- btrfs_no_printk(fs_info, fmt, ##args); \
- rcu_read_unlock(); \
-} while (0)
-
#define btrfs_printk_ratelimited(fs_info, fmt, args...) \
do { \
static DEFINE_RATELIMIT_STATE(_rs, \