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| author | Adam Borowski | 2017-09-15 17:36:58 +0200 |
|---|---|---|
| committer | David Sterba | 2017-11-01 20:45:34 +0100 |
| commit | fa4d885a482ef52ad3efa12a5799a3f6408b0718 (patch) | |
| tree | b2c77afc273d184129350162e5b564a545f59916 /fs/btrfs/super.c | |
| parent | btrfs: allow to set compression level for zlib (diff) | |
| download | kernel-qcow2-linux-fa4d885a482ef52ad3efa12a5799a3f6408b0718.tar.gz kernel-qcow2-linux-fa4d885a482ef52ad3efa12a5799a3f6408b0718.tar.xz kernel-qcow2-linux-fa4d885a482ef52ad3efa12a5799a3f6408b0718.zip | |
btrfs: allow setting zlib compression level via :9
This is bikeshedding, but it seems people are drastically more likely to
understand "zlib:9" as compression level rather than an algorithm
version compared to "zlib9".
Based on feedback on the mailinglist, the ":9" will be the only accepted
syntax. The level must be a single digit. Unrecognized format will
result to the default, for forward compatibility in a similar way the
compression algorithm specifier was relaxed in commit
a7164fa4e055daf6368c ("btrfs: prepare for extensions in compression
options").
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Reviewed-by: David Sterba <dsterba@suse.com>
[ tighten the accepted format ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 57f3f9600e18..65af029559b5 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1261,7 +1261,7 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) else seq_printf(seq, ",compress=%s", compress_type); if (info->compress_level) - seq_printf(seq, "%d", info->compress_level); + seq_printf(seq, ":%d", info->compress_level); } if (btrfs_test_opt(info, NOSSD)) seq_puts(seq, ",nossd"); |