Commit 5730cce3 authored May 30, 2023 by Ritesh Harjani Committed by Theodore Ts'o Jun 26, 2023

ext4: Remove unused extern variables declaration



ext4_mb_stats & ext4_mb_max_to_scan are never used. We use
sbi->s_mb_stats and sbi->s_mb_max_to_scan instead.
Hence kill these extern declarations.

Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/928b3142062172533b6d1b5a94de94700590fef3.1685449706.git.ojaswin@linux.ibm.com


Signed-off-by: Theodore Ts'o <tytso@mit.edu>

parent 569f196f

fs/ext4/ext4.h

+0 −2

Original line number	Diff line number	Diff line
		@@ -2837,8 +2837,6 @@ int ext4_fc_record_regions(struct super_block *sb, int ino,
		/* mballoc.c */
		extern const struct seq_operations ext4_mb_seq_groups_ops;
		extern const struct seq_operations ext4_mb_seq_structs_summary_ops;
		extern long ext4_mb_stats;
		extern long ext4_mb_max_to_scan;
		extern int ext4_seq_mb_stats_show(struct seq_file seq, void offset);
		extern int ext4_mb_init(struct super_block *);
		extern int ext4_mb_release(struct super_block *);

fs/ext4/mballoc.h

+1 −1

Original line number	Diff line number	Diff line
		@@ -49,7 +49,7 @@
		#define MB_DEFAULT_MIN_TO_SCAN 10

		/*
		* with 'ext4_mb_stats' allocator will collect stats that will be
		* with 's_mb_stats' allocator will collect stats that will be
		* shown at umount. The collecting costs though!
		*/
		#define MB_DEFAULT_STATS 0