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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-04 21:45:33 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-01 19:47:40 +0300 |
| commit | 267b801fda10b70eca4001a819fcac07f023df6b (patch) | |
| tree | 41d9bfd3452ecd85ab133d82e753c4e3f4c0a43e /fs/bcachefs/bcachefs_ioctl.h | |
| parent | 8408fa570ef9b8c35720369bad6b13828ae6b001 (diff) | |
| download | linux-267b801fda10b70eca4001a819fcac07f023df6b.tar.xz | |
bcachefs: BCH_IOCTL_FSCK_ONLINE
This adds a new ioctl for running fsck on a mounted, in use filesystem.
This reuses the fsck_thread code from the previous patch for running
fsck on an offline, unmounted filesystem, so that log messages for the
fsck thread are redirected to userspace.
Only one running fsck instance is allowed at a time; a new semaphore
(since the lock will be taken by one thread and released by another) is
added for this.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/bcachefs_ioctl.h')
| -rw-r--r-- | fs/bcachefs/bcachefs_ioctl.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/bcachefs/bcachefs_ioctl.h b/fs/bcachefs/bcachefs_ioctl.h index 07c490851742..21f81b16f24e 100644 --- a/fs/bcachefs/bcachefs_ioctl.h +++ b/fs/bcachefs/bcachefs_ioctl.h @@ -83,7 +83,8 @@ struct bch_ioctl_incremental { #define BCH_IOCTL_DEV_USAGE_V2 _IOWR(0xbc, 18, struct bch_ioctl_dev_usage_v2) -#define BCH_IOCTL_FSCK_OFFLINE _IOW(0xbc, 19, struct bch_ioctl_fsck_offline) +#define BCH_IOCTL_FSCK_OFFLINE _IOW(0xbc, 19, struct bch_ioctl_fsck_offline) +#define BCH_IOCTL_FSCK_ONLINE _IOW(0xbc, 20, struct bch_ioctl_fsck_online) /* ioctl below act on a particular file, not the filesystem as a whole: */ @@ -399,4 +400,13 @@ struct bch_ioctl_fsck_offline { __u64 devs[0]; }; +/* + * BCH_IOCTL_FSCK_ONLINE: run fsck from the 'bcachefs fsck' userspace command, + * but with the kernel's implementation of fsck: + */ +struct bch_ioctl_fsck_online { + __u64 flags; + __u64 opts; /* string */ +}; + #endif /* _BCACHEFS_IOCTL_H */ |