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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2020-11-16 22:23:06 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-23 00:08:47 +0300 |
| commit | e8c851b351d60b5cf9f2cd23c126fc200b8f5e6a (patch) | |
| tree | 0ca4cb55fb23bc30e5a9d4bc5c34168223cc3a69 /fs/bcachefs/chardev.c | |
| parent | 1c74cec10cc8dbc595c6de83e2344a44d278dc11 (diff) | |
| download | linux-e8c851b351d60b5cf9f2cd23c126fc200b8f5e6a.tar.xz | |
bcachefs: Add an ioctl for resizing journal on a device
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/chardev.c')
| -rw-r--r-- | fs/bcachefs/chardev.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/bcachefs/chardev.c b/fs/bcachefs/chardev.c index 0b1eca63f78e..cd5c850a41ec 100644 --- a/fs/bcachefs/chardev.c +++ b/fs/bcachefs/chardev.c @@ -5,6 +5,7 @@ #include "bcachefs_ioctl.h" #include "buckets.h" #include "chardev.h" +#include "journal.h" #include "move.h" #include "replicas.h" #include "super.h" @@ -563,6 +564,26 @@ static long bch2_ioctl_disk_resize(struct bch_fs *c, return ret; } +static long bch2_ioctl_disk_resize_journal(struct bch_fs *c, + struct bch_ioctl_disk_resize_journal arg) +{ + struct bch_dev *ca; + int ret; + + if ((arg.flags & ~BCH_BY_INDEX) || + arg.pad) + return -EINVAL; + + ca = bch2_device_lookup(c, arg.dev, arg.flags); + if (IS_ERR(ca)) + return PTR_ERR(ca); + + ret = bch2_set_nr_journal_buckets(c, ca, arg.nbuckets); + + percpu_ref_put(&ca->ref); + return ret; +} + #define BCH_IOCTL(_name, _argtype) \ do { \ _argtype i; \ @@ -619,6 +640,8 @@ long bch2_fs_ioctl(struct bch_fs *c, unsigned cmd, void __user *arg) BCH_IOCTL(data, struct bch_ioctl_data); case BCH_IOCTL_DISK_RESIZE: BCH_IOCTL(disk_resize, struct bch_ioctl_disk_resize); + case BCH_IOCTL_DISK_RESIZE_JOURNAL: + BCH_IOCTL(disk_resize_journal, struct bch_ioctl_disk_resize_journal); default: return -ENOTTY; |