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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2023-12-30 05:16:32 +0300 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-01 19:47:07 +0300 |
| commit | 0d72ab35a925d66b044cb62b709e53141c3f0143 (patch) | |
| tree | a0ef3340110dac004ec3ba1d1a2d7dfb1b9e7ce0 /fs/bcachefs/fs-ioctl.c | |
| parent | 84f1638795da1ff2084597de4251e9054f1ad728 (diff) | |
| download | linux-0d72ab35a925d66b044cb62b709e53141c3f0143.tar.xz | |
bcachefs: make RO snapshots actually RO
Add checks to all the VFS paths for "are we in a RO snapshot?".
Note - we don't check this when setting inode options via our xattr
interface, since those generally only affect data placement, not
contents of data.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Reported-by: "Carl E. Thompson" <list-bcachefs@carlthompson.net>
Diffstat (limited to 'fs/bcachefs/fs-ioctl.c')
| -rw-r--r-- | fs/bcachefs/fs-ioctl.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/bcachefs/fs-ioctl.c b/fs/bcachefs/fs-ioctl.c index a70b7a03057d..14d5cc6f90d7 100644 --- a/fs/bcachefs/fs-ioctl.c +++ b/fs/bcachefs/fs-ioctl.c @@ -100,7 +100,8 @@ static int bch2_ioc_setflags(struct bch_fs *c, } mutex_lock(&inode->ei_update_lock); - ret = bch2_write_inode(c, inode, bch2_inode_flags_set, &s, + ret = bch2_subvol_is_ro(c, inode->ei_subvol) ?: + bch2_write_inode(c, inode, bch2_inode_flags_set, &s, ATTR_CTIME); mutex_unlock(&inode->ei_update_lock); @@ -183,13 +184,10 @@ static int bch2_ioc_fssetxattr(struct bch_fs *c, } mutex_lock(&inode->ei_update_lock); - ret = bch2_set_projid(c, inode, fa.fsx_projid); - if (ret) - goto err_unlock; - - ret = bch2_write_inode(c, inode, fssetxattr_inode_update_fn, &s, + ret = bch2_subvol_is_ro(c, inode->ei_subvol) ?: + bch2_set_projid(c, inode, fa.fsx_projid) ?: + bch2_write_inode(c, inode, fssetxattr_inode_update_fn, &s, ATTR_CTIME); -err_unlock: mutex_unlock(&inode->ei_update_lock); err: inode_unlock(&inode->v); |