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| author | Hongbo Li <lihongbo22@huawei.com> | 2024-06-03 15:26:18 +0200 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-07-15 01:00:14 +0200 |
| commit | 8a4ef7e28abade861d894e25b167988c5b8977a7 (patch) | |
| tree | fe47d3115494ad532787496973f5969924ff7775 /fs/bcachefs/fs-ioctl.c | |
| parent | bcachefs: Unlock trans when waiting for user input in fsck (diff) | |
| download | linux-8a4ef7e28abade861d894e25b167988c5b8977a7.tar.xz linux-8a4ef7e28abade861d894e25b167988c5b8977a7.zip | |
bcachefs: implement FS_IOC_GETVERSION to support lsattr
In this patch we add the FS_IOC_GETVERSION ioctl for getting
i_generation from inode, after that, users can list file's
generation number by using "lsattr".
Signed-off-by: Hongbo Li <lihongbo22@huawei.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/fs-ioctl.c')
| -rw-r--r-- | fs/bcachefs/fs-ioctl.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/bcachefs/fs-ioctl.c b/fs/bcachefs/fs-ioctl.c index 79a0c8732bce..add90172b475 100644 --- a/fs/bcachefs/fs-ioctl.c +++ b/fs/bcachefs/fs-ioctl.c @@ -272,6 +272,11 @@ err1: return ret; } +static int bch2_ioc_getversion(struct bch_inode_info *inode, u32 __user *arg) +{ + return put_user(inode->v.i_generation, arg); +} + static int bch2_ioc_goingdown(struct bch_fs *c, u32 __user *arg) { u32 flags; @@ -499,7 +504,7 @@ long bch2_fs_file_ioctl(struct file *file, unsigned cmd, unsigned long arg) break; case FS_IOC_GETVERSION: - ret = -ENOTTY; + ret = bch2_ioc_getversion(inode, (u32 __user *) arg); break; case FS_IOC_SETVERSION: @@ -547,6 +552,9 @@ long bch2_compat_fs_ioctl(struct file *file, unsigned cmd, unsigned long arg) case FS_IOC32_SETFLAGS: cmd = FS_IOC_SETFLAGS; break; + case FS_IOC32_GETVERSION: + cmd = FS_IOC_GETVERSION; + break; default: return -ENOIOCTLCMD; } |