kernel/git/stable/linux.git/fs/btrfs/tree-log.c, branch master

btrfs: tracepoints: add trace event for btrfs_sync_log()

2026-06-09T10:49:25+00:00

btrfs_sync_log() is one of the main functions called during a fsync. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for btrfs_log_new_name()

2026-06-09T10:49:25+00:00

btrfs_log_new_name() is an important function that affects inode logging and is called during link and rename operations. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for btrfs_record_new_subvolume()

2026-06-09T10:49:24+00:00

btrfs_record_new_subvolume() is an important operation that affects inode logging and is called during subvolume creation. Add a trace event for it to help debug issues. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for btrfs_record_snapshot_destroy()

2026-06-09T10:49:24+00:00

btrfs_record_snapshot_destroy() is an important operation that affects inode logging and is called during subvolume/snapshot deletion as well as during rmdir. Add a trace event for it to help debug issues. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for btrfs_record_unlink_dir()

2026-06-09T10:49:24+00:00

btrfs_record_unlink_dir() is an important operation that affects inode logging and is called during unlink and rename operations. Add a trace event for it to help debug issues. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for log_new_delayed_dentries()

2026-06-09T10:49:24+00:00

log_new_delayed_dentries() is an important step called during a fsync, as well as during rename and link operations on inodes that were previously logged. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: use simple assertions where enough during inode logging and replay

2026-06-09T10:49:24+00:00

In overwrite_item(): There's no point in printing the root's ID if the assertion fails, since it can only be BTRFS_TREE_LOG_OBJECTID if it fails. In log_new_delayed_dentries(): There's no point in using a verbose assertion to print the value of ctx->logging_new_delayed_dentries because it's a boolean, so if the assertion fails we know its value is true (1). So convert them to simpler assertion to make the code less verbose. It also slightly reduces the object size, at least on x86_64 using Debian's gcc 14.2.0-19 (if CONFIG_BTRFS_ASSERT is enabled in the kernel config, which is the case for SUSE distributions for example). Before: $ size fs/btrfs/btrfs.ko text data bss dec hex filename 2028244 197176 15624 2241044 223214 fs/btrfs/btrfs.ko After: $ size fs/btrfs/btrfs.ko text data bss dec hex filename 2028228 197176 15624 2241028 223204 fs/btrfs/btrfs.ko Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for log_conflicting_inodes()

2026-06-09T10:49:23+00:00

log_conflicting_inodes() is an important step called during a fsync, as well as during rename and link operations on inodes that were previously logged. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for add_conflicting_inode()

2026-06-09T10:49:23+00:00

add_conflicting_inode() is an important step called during a fsync, as well as during rename and link operations on inodes that were previously logged. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba

btrfs: tracepoints: add trace event for log_new_dir_dentries()

2026-06-08T13:53:35+00:00

log_new_dir_dentries() is an important step called during a fsync, as well as during rename and link operations on inodes that were previously logged. Add trace events for when entering and exiting that function. Reviewed-by: Johannes Thumshirn Signed-off-by: Filipe Manana Signed-off-by: David Sterba