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-rw-r--r--fs/xfs/xfs_aops.c13
-rw-r--r--fs/xfs/xfs_ioctl.c154
2 files changed, 78 insertions, 89 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 137b3a273f3d..761248ee2778 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -766,6 +766,7 @@ xfs_add_to_ioend(
struct block_device *bdev = xfs_find_bdev_for_inode(inode);
unsigned len = i_blocksize(inode);
unsigned poff = offset & (PAGE_SIZE - 1);
+ bool merged, same_page = false;
sector_t sector;
sector = xfs_fsb_to_db(ip, wpc->imap.br_startblock) +
@@ -782,10 +783,14 @@ xfs_add_to_ioend(
wpc->imap.br_state, offset, bdev, sector, wbc);
}
- if (!__bio_try_merge_page(wpc->ioend->io_bio, page, len, poff, true)) {
- if (iop)
- atomic_inc(&iop->write_count);
- if (bio_full(wpc->ioend->io_bio))
+ merged = __bio_try_merge_page(wpc->ioend->io_bio, page, len, poff,
+ &same_page);
+
+ if (iop && !same_page)
+ atomic_inc(&iop->write_count);
+
+ if (!merged) {
+ if (bio_full(wpc->ioend->io_bio, len))
wpc->ioend->io_bio = xfs_chain_bio(wpc->ioend->io_bio);
bio_add_page(wpc->ioend->io_bio, page, len, poff);
}
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 1876461e5104..6f7848cd5527 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1102,37 +1102,44 @@ xfs_di2lxflags(
return flags;
}
-STATIC int
-xfs_ioc_fsgetxattr(
- xfs_inode_t *ip,
- int attr,
- void __user *arg)
+static void
+xfs_fill_fsxattr(
+ struct xfs_inode *ip,
+ bool attr,
+ struct fsxattr *fa)
{
- struct fsxattr fa;
-
- memset(&fa, 0, sizeof(struct fsxattr));
-
- xfs_ilock(ip, XFS_ILOCK_SHARED);
- fa.fsx_xflags = xfs_ip2xflags(ip);
- fa.fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog;
- fa.fsx_cowextsize = ip->i_d.di_cowextsize <<
+ simple_fill_fsxattr(fa, xfs_ip2xflags(ip));
+ fa->fsx_extsize = ip->i_d.di_extsize << ip->i_mount->m_sb.sb_blocklog;
+ fa->fsx_cowextsize = ip->i_d.di_cowextsize <<
ip->i_mount->m_sb.sb_blocklog;
- fa.fsx_projid = xfs_get_projid(ip);
+ fa->fsx_projid = xfs_get_projid(ip);
if (attr) {
if (ip->i_afp) {
if (ip->i_afp->if_flags & XFS_IFEXTENTS)
- fa.fsx_nextents = xfs_iext_count(ip->i_afp);
+ fa->fsx_nextents = xfs_iext_count(ip->i_afp);
else
- fa.fsx_nextents = ip->i_d.di_anextents;
+ fa->fsx_nextents = ip->i_d.di_anextents;
} else
- fa.fsx_nextents = 0;
+ fa->fsx_nextents = 0;
} else {
if (ip->i_df.if_flags & XFS_IFEXTENTS)
- fa.fsx_nextents = xfs_iext_count(&ip->i_df);
+ fa->fsx_nextents = xfs_iext_count(&ip->i_df);
else
- fa.fsx_nextents = ip->i_d.di_nextents;
+ fa->fsx_nextents = ip->i_d.di_nextents;
}
+}
+
+STATIC int
+xfs_ioc_fsgetxattr(
+ xfs_inode_t *ip,
+ int attr,
+ void __user *arg)
+{
+ struct fsxattr fa;
+
+ xfs_ilock(ip, XFS_ILOCK_SHARED);
+ xfs_fill_fsxattr(ip, attr, &fa);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
if (copy_to_user(arg, &fa, sizeof(fa)))
@@ -1258,15 +1265,6 @@ xfs_ioctl_setattr_xflags(
if ((fa->fsx_xflags & FS_XFLAG_DAX) && xfs_is_reflink_inode(ip))
return -EINVAL;
- /*
- * Can't modify an immutable/append-only file unless
- * we have appropriate permission.
- */
- if (((ip->i_d.di_flags & (XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND)) ||
- (fa->fsx_xflags & (FS_XFLAG_IMMUTABLE | FS_XFLAG_APPEND))) &&
- !capable(CAP_LINUX_IMMUTABLE))
- return -EPERM;
-
/* diflags2 only valid for v3 inodes. */
di_flags2 = xfs_flags2diflags2(ip, fa->fsx_xflags);
if (di_flags2 && ip->i_d.di_version < 3)
@@ -1425,39 +1423,31 @@ xfs_ioctl_setattr_check_extsize(
struct fsxattr *fa)
{
struct xfs_mount *mp = ip->i_mount;
-
- if ((fa->fsx_xflags & FS_XFLAG_EXTSIZE) && !S_ISREG(VFS_I(ip)->i_mode))
- return -EINVAL;
-
- if ((fa->fsx_xflags & FS_XFLAG_EXTSZINHERIT) &&
- !S_ISDIR(VFS_I(ip)->i_mode))
- return -EINVAL;
+ xfs_extlen_t size;
+ xfs_fsblock_t extsize_fsb;
if (S_ISREG(VFS_I(ip)->i_mode) && ip->i_d.di_nextents &&
((ip->i_d.di_extsize << mp->m_sb.sb_blocklog) != fa->fsx_extsize))
return -EINVAL;
- if (fa->fsx_extsize != 0) {
- xfs_extlen_t size;
- xfs_fsblock_t extsize_fsb;
-
- extsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_extsize);
- if (extsize_fsb > MAXEXTLEN)
- return -EINVAL;
+ if (fa->fsx_extsize == 0)
+ return 0;
- if (XFS_IS_REALTIME_INODE(ip) ||
- (fa->fsx_xflags & FS_XFLAG_REALTIME)) {
- size = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
- } else {
- size = mp->m_sb.sb_blocksize;
- if (extsize_fsb > mp->m_sb.sb_agblocks / 2)
- return -EINVAL;
- }
+ extsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_extsize);
+ if (extsize_fsb > MAXEXTLEN)
+ return -EINVAL;
- if (fa->fsx_extsize % size)
+ if (XFS_IS_REALTIME_INODE(ip) ||
+ (fa->fsx_xflags & FS_XFLAG_REALTIME)) {
+ size = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
+ } else {
+ size = mp->m_sb.sb_blocksize;
+ if (extsize_fsb > mp->m_sb.sb_agblocks / 2)
return -EINVAL;
- } else
- fa->fsx_xflags &= ~(FS_XFLAG_EXTSIZE | FS_XFLAG_EXTSZINHERIT);
+ }
+
+ if (fa->fsx_extsize % size)
+ return -EINVAL;
return 0;
}
@@ -1483,6 +1473,8 @@ xfs_ioctl_setattr_check_cowextsize(
struct fsxattr *fa)
{
struct xfs_mount *mp = ip->i_mount;
+ xfs_extlen_t size;
+ xfs_fsblock_t cowextsize_fsb;
if (!(fa->fsx_xflags & FS_XFLAG_COWEXTSIZE))
return 0;
@@ -1491,25 +1483,19 @@ xfs_ioctl_setattr_check_cowextsize(
ip->i_d.di_version != 3)
return -EINVAL;
- if (!S_ISREG(VFS_I(ip)->i_mode) && !S_ISDIR(VFS_I(ip)->i_mode))
- return -EINVAL;
-
- if (fa->fsx_cowextsize != 0) {
- xfs_extlen_t size;
- xfs_fsblock_t cowextsize_fsb;
+ if (fa->fsx_cowextsize == 0)
+ return 0;
- cowextsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_cowextsize);
- if (cowextsize_fsb > MAXEXTLEN)
- return -EINVAL;
+ cowextsize_fsb = XFS_B_TO_FSB(mp, fa->fsx_cowextsize);
+ if (cowextsize_fsb > MAXEXTLEN)
+ return -EINVAL;
- size = mp->m_sb.sb_blocksize;
- if (cowextsize_fsb > mp->m_sb.sb_agblocks / 2)
- return -EINVAL;
+ size = mp->m_sb.sb_blocksize;
+ if (cowextsize_fsb > mp->m_sb.sb_agblocks / 2)
+ return -EINVAL;
- if (fa->fsx_cowextsize % size)
- return -EINVAL;
- } else
- fa->fsx_xflags &= ~FS_XFLAG_COWEXTSIZE;
+ if (fa->fsx_cowextsize % size)
+ return -EINVAL;
return 0;
}
@@ -1523,21 +1509,6 @@ xfs_ioctl_setattr_check_projid(
if (fa->fsx_projid > (uint16_t)-1 &&
!xfs_sb_version_hasprojid32bit(&ip->i_mount->m_sb))
return -EINVAL;
-
- /*
- * Project Quota ID state is only allowed to change from within the init
- * namespace. Enforce that restriction only if we are trying to change
- * the quota ID state. Everything else is allowed in user namespaces.
- */
- if (current_user_ns() == &init_user_ns)
- return 0;
-
- if (xfs_get_projid(ip) != fa->fsx_projid)
- return -EINVAL;
- if ((fa->fsx_xflags & FS_XFLAG_PROJINHERIT) !=
- (ip->i_d.di_flags & XFS_DIFLAG_PROJINHERIT))
- return -EINVAL;
-
return 0;
}
@@ -1546,6 +1517,7 @@ xfs_ioctl_setattr(
xfs_inode_t *ip,
struct fsxattr *fa)
{
+ struct fsxattr old_fa;
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
struct xfs_dquot *udqp = NULL;
@@ -1593,7 +1565,6 @@ xfs_ioctl_setattr(
goto error_free_dquots;
}
-
if (XFS_IS_QUOTA_RUNNING(mp) && XFS_IS_PQUOTA_ON(mp) &&
xfs_get_projid(ip) != fa->fsx_projid) {
code = xfs_qm_vop_chown_reserve(tp, ip, udqp, NULL, pdqp,
@@ -1602,6 +1573,11 @@ xfs_ioctl_setattr(
goto error_trans_cancel;
}
+ xfs_fill_fsxattr(ip, false, &old_fa);
+ code = vfs_ioc_fssetxattr_check(VFS_I(ip), &old_fa, fa);
+ if (code)
+ goto error_trans_cancel;
+
code = xfs_ioctl_setattr_check_extsize(ip, fa);
if (code)
goto error_trans_cancel;
@@ -1712,6 +1688,7 @@ xfs_ioc_setxflags(
{
struct xfs_trans *tp;
struct fsxattr fa;
+ struct fsxattr old_fa;
unsigned int flags;
int join_flags = 0;
int error;
@@ -1747,6 +1724,13 @@ xfs_ioc_setxflags(
goto out_drop_write;
}
+ xfs_fill_fsxattr(ip, false, &old_fa);
+ error = vfs_ioc_fssetxattr_check(VFS_I(ip), &old_fa, &fa);
+ if (error) {
+ xfs_trans_cancel(tp);
+ goto out_drop_write;
+ }
+
error = xfs_ioctl_setattr_xflags(tp, ip, &fa);
if (error) {
xfs_trans_cancel(tp);
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-06-09 18:51:53 +0200