Commit bc2fbaa4 authored by Mikulas Patocka's avatar Mikulas Patocka Committed by Jan Kara

ext2: fix missing percpu_counter_inc

sbi->s_freeinodes_counter is only decreased by the ext2 code, it is never
increased. This patch fixes it.

Note that sbi->s_freeinodes_counter is only used in the algorithm that
tries to find the group for new allocations, so this bug is not easily
visible (the only visibility is that the group finding algorithm selects
inoptinal result).

Link: https://lore.kernel.org/r/alpine.LRH.2.02.2004201538300.19436@file01.intranet.prod.int.rdu2.redhat.comSigned-off-by: default avatarMikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent a43850a3
...@@ -80,6 +80,7 @@ static void ext2_release_inode(struct super_block *sb, int group, int dir) ...@@ -80,6 +80,7 @@ static void ext2_release_inode(struct super_block *sb, int group, int dir)
if (dir) if (dir)
le16_add_cpu(&desc->bg_used_dirs_count, -1); le16_add_cpu(&desc->bg_used_dirs_count, -1);
spin_unlock(sb_bgl_lock(EXT2_SB(sb), group)); spin_unlock(sb_bgl_lock(EXT2_SB(sb), group));
percpu_counter_inc(&EXT2_SB(sb)->s_freeinodes_counter);
if (dir) if (dir)
percpu_counter_dec(&EXT2_SB(sb)->s_dirs_counter); percpu_counter_dec(&EXT2_SB(sb)->s_dirs_counter);
mark_buffer_dirty(bh); mark_buffer_dirty(bh);
...@@ -528,7 +529,7 @@ struct inode *ext2_new_inode(struct inode *dir, umode_t mode, ...@@ -528,7 +529,7 @@ struct inode *ext2_new_inode(struct inode *dir, umode_t mode,
goto fail; goto fail;
} }
percpu_counter_add(&sbi->s_freeinodes_counter, -1); percpu_counter_dec(&sbi->s_freeinodes_counter);
if (S_ISDIR(mode)) if (S_ISDIR(mode))
percpu_counter_inc(&sbi->s_dirs_counter); percpu_counter_inc(&sbi->s_dirs_counter);
......
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