diff options
Diffstat (limited to 'libbcachefs/sysfs.c')
| -rw-r--r-- | libbcachefs/sysfs.c | 19 |
1 files changed, 11 insertions, 8 deletions
diff --git a/libbcachefs/sysfs.c b/libbcachefs/sysfs.c index ed9a0950..b727845d 100644 --- a/libbcachefs/sysfs.c +++ b/libbcachefs/sysfs.c @@ -499,6 +499,17 @@ STORE(bch2_fs) /* Debugging: */ + if (!test_bit(BCH_FS_RW, &c->flags)) + return -EROFS; + + if (attr == &sysfs_prune_cache) { + struct shrink_control sc; + + sc.gfp_mask = GFP_KERNEL; + sc.nr_to_scan = strtoul_or_return(buf); + c->btree_cache.shrink.scan_objects(&c->btree_cache.shrink, &sc); + } + if (attr == &sysfs_trigger_gc) { /* * Full gc is currently incompatible with btree key cache: @@ -512,14 +523,6 @@ STORE(bch2_fs) #endif } - if (attr == &sysfs_prune_cache) { - struct shrink_control sc; - - sc.gfp_mask = GFP_KERNEL; - sc.nr_to_scan = strtoul_or_return(buf); - c->btree_cache.shrink.scan_objects(&c->btree_cache.shrink, &sc); - } - #ifdef CONFIG_BCACHEFS_TESTS if (attr == &sysfs_perf_test) { char *tmp = kstrdup(buf, GFP_KERNEL), *p = tmp; |