diff options
| author | Roman Anufriev <dotdot@yandex-team.ru> | 2020-10-22 05:21:00 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2020-12-03 15:18:48 +0100 |
| commit | ca9b404ff137d67e559c5bd77533408bb0fa41dc (patch) | |
| tree | cf7709bb1401ceda2f5bcf706f7f322e73063c33 | |
| parent | ext4: add helpers for checking whether quota can be enabled/is journalled (diff) | |
| download | linux-ca9b404ff137d67e559c5bd77533408bb0fa41dc.tar.xz linux-ca9b404ff137d67e559c5bd77533408bb0fa41dc.zip | |
ext4: print quota journalling mode on (re-)mount
Right now, it is hard to understand which quota journalling type is enabled:
you need to be quite familiar with kernel code and trace it or really
understand what different combinations of fs flags/mount options lead to.
This patch adds printing of current quota jounalling mode on each
mount/remount, thus making it easier to check it at a glance/in autotests.
The semantics is similar to ext4 data journalling modes:
* journalled - quota configured, journalling will be enabled
* writeback - quota configured, journalling won't be enabled
* none - quota isn't configured
* disabled - kernel compiled without CONFIG_QUOTA feature
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/1603336860-16153-2-git-send-email-dotdot@yandex-team.ru
Signed-off-by: Roman Anufriev <dotdot@yandex-team.ru>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
| -rw-r--r-- | fs/ext4/super.c | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index d9e1946a634e..132adb2a2c01 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -4005,6 +4005,21 @@ static void ext4_set_resv_clusters(struct super_block *sb) atomic64_set(&sbi->s_resv_clusters, resv_clusters); } +static const char *ext4_quota_mode(struct super_block *sb) +{ +#ifdef CONFIG_QUOTA + if (!ext4_quota_capable(sb)) + return "none"; + + if (EXT4_SB(sb)->s_journal && ext4_is_quota_journalled(sb)) + return "journalled"; + else + return "writeback"; +#else + return "disabled"; +#endif +} + static int ext4_fill_super(struct super_block *sb, void *data, int silent) { struct dax_device *dax_dev = fs_dax_get_by_bdev(sb->s_bdev); @@ -5090,10 +5105,11 @@ no_journal: if (___ratelimit(&ext4_mount_msg_ratelimit, "EXT4-fs mount")) ext4_msg(sb, KERN_INFO, "mounted filesystem with%s. " - "Opts: %.*s%s%s", descr, + "Opts: %.*s%s%s. Quota mode: %s.", descr, (int) sizeof(sbi->s_es->s_mount_opts), sbi->s_es->s_mount_opts, - *sbi->s_es->s_mount_opts ? "; " : "", orig_data); + *sbi->s_es->s_mount_opts ? "; " : "", orig_data, + ext4_quota_mode(sb)); if (es->s_error_count) mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */ @@ -6031,7 +6047,8 @@ static int ext4_remount(struct super_block *sb, int *flags, char *data) */ *flags = (*flags & ~vfs_flags) | (sb->s_flags & vfs_flags); - ext4_msg(sb, KERN_INFO, "re-mounted. Opts: %s", orig_data); + ext4_msg(sb, KERN_INFO, "re-mounted. Opts: %s. Quota mode: %s.", + orig_data, ext4_quota_mode(sb)); kfree(orig_data); return 0; |