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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2022-10-12 22:21:08 +0200 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 23:09:43 +0200 |
| commit | 65ff2d3a7abb9f1cc41dc824a9fc374a2c81eaf3 (patch) | |
| tree | 545637c2e0f1223419d20b19dcd80c2bc3bd606e /fs/bcachefs/fs-ioctl.c | |
| parent | bcachefs: Don't allow hardlinks when inherited attrs would change (diff) | |
| download | linux-65ff2d3a7abb9f1cc41dc824a9fc374a2c81eaf3.tar.xz linux-65ff2d3a7abb9f1cc41dc824a9fc374a2c81eaf3.zip | |
bcachefs: Support FS_XFLAG_PROJINHERIT
We already have support for the flag's semantics: inode options are
inherited by children if they were explicitly set on the parent. This
patch just maps the FS_XFLAG_PROJINHERIT flag to the "this option was
epxlicitly set" bit.
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 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/bcachefs/fs-ioctl.c b/fs/bcachefs/fs-ioctl.c index 3df2f5f3d1ea..b51053130f28 100644 --- a/fs/bcachefs/fs-ioctl.c +++ b/fs/bcachefs/fs-ioctl.c @@ -26,6 +26,9 @@ struct flags_set { unsigned flags; unsigned projid; + + bool set_projinherit; + bool projinherit; }; static int bch2_inode_flags_set(struct bch_inode_info *inode, @@ -50,6 +53,11 @@ static int bch2_inode_flags_set(struct bch_inode_info *inode, (newflags & (BCH_INODE_NODUMP|BCH_INODE_NOATIME)) != newflags) return -EINVAL; + if (s->set_projinherit) { + bi->bi_fields_set &= ~(1 << Inode_opt_project); + bi->bi_fields_set |= ((int) s->projinherit << Inode_opt_project); + } + bi->bi_flags &= ~s->mask; bi->bi_flags |= newflags; @@ -107,6 +115,10 @@ static int bch2_ioc_fsgetxattr(struct bch_inode_info *inode, struct fsxattr fa = { 0 }; fa.fsx_xflags = map_flags(bch_flags_to_xflags, inode->ei_inode.bi_flags); + + if (inode->ei_inode.bi_fields_set & (1 << Inode_opt_project)) + fa.fsx_xflags |= FS_XFLAG_PROJINHERIT; + fa.fsx_projid = inode->ei_qid.q[QTYP_PRJ]; return copy_to_user(arg, &fa, sizeof(fa)); @@ -138,6 +150,10 @@ static int bch2_ioc_fssetxattr(struct bch_fs *c, if (copy_from_user(&fa, arg, sizeof(fa))) return -EFAULT; + s.set_projinherit = true; + s.projinherit = (fa.fsx_xflags & FS_XFLAG_PROJINHERIT) != 0; + fa.fsx_xflags &= ~FS_XFLAG_PROJINHERIT; + s.flags = map_flags_rev(bch_flags_to_xflags, fa.fsx_xflags); if (fa.fsx_xflags) return -EOPNOTSUPP; |