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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: darrick.wong@oracle.com
Cc: linux-xfs@vger.kernel.org
Subject: [PATCH 8/8] xfs: move inode extent size hint validation to libxfs
Date: Thu, 22 Feb 2018 18:01:17 -0800	[thread overview]
Message-ID: <151935127715.21842.15318882564089652077.stgit@magnolia> (raw)
In-Reply-To: <151935122813.21842.14996049216693190946.stgit@magnolia>

From: Darrick J. Wong <darrick.wong@oracle.com>

Extent size hint validation is used by scrub to decide if there's an
error, and it will be used by repair to decide to remove the hint.
Since these use the same validation functions, move them to libxfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---
 fs/xfs/libxfs/xfs_inode_buf.c |  105 +++++++++++++++++++++++++++++++++++++++++
 fs/xfs/libxfs/xfs_inode_buf.h |    5 ++
 fs/xfs/scrub/inode.c          |  100 +++++----------------------------------
 3 files changed, 122 insertions(+), 88 deletions(-)


diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index b12851e..b4a4b97 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -651,3 +651,108 @@ xfs_iread(
 	xfs_trans_brelse(tp, bp);
 	return error;
 }
+
+/*
+ * Validate di_extsize hint.
+ *
+ * The rules are documented at xfs_ioctl_setattr_check_extsize().
+ * These functions must be kept in sync with each other.
+ */
+xfs_failaddr_t
+xfs_inode_validate_extsize(
+	struct xfs_mount		*mp,
+	uint32_t			extsize,
+	uint16_t			mode,
+	uint16_t			flags)
+{
+	bool				rt_flag;
+	bool				hint_flag;
+	bool				inherit_flag;
+	uint32_t			extsize_bytes;
+	uint32_t			blocksize_bytes;
+
+	rt_flag = (flags & XFS_DIFLAG_REALTIME);
+	hint_flag = (flags & XFS_DIFLAG_EXTSIZE);
+	inherit_flag = (flags & XFS_DIFLAG_EXTSZINHERIT);
+	extsize_bytes = XFS_FSB_TO_B(mp, extsize);
+
+	if (rt_flag)
+		blocksize_bytes = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
+	else
+		blocksize_bytes = mp->m_sb.sb_blocksize;
+
+	if ((hint_flag || inherit_flag) && !(S_ISDIR(mode) || S_ISREG(mode)))
+		return __this_address;
+
+	if (hint_flag && !S_ISREG(mode))
+		return __this_address;
+
+	if (inherit_flag && !S_ISDIR(mode))
+		return __this_address;
+
+	if ((hint_flag || inherit_flag) && extsize == 0)
+		return __this_address;
+
+	if (!(hint_flag || inherit_flag) && extsize != 0)
+		return __this_address;
+
+	if (extsize_bytes % blocksize_bytes)
+		return __this_address;
+
+	if (extsize > MAXEXTLEN)
+		return __this_address;
+
+	if (!rt_flag && extsize > mp->m_sb.sb_agblocks / 2)
+		return __this_address;
+
+	return NULL;
+}
+
+/*
+ * Validate di_cowextsize hint.
+ *
+ * The rules are documented at xfs_ioctl_setattr_check_cowextsize().
+ * These functions must be kept in sync with each other.
+ */
+xfs_failaddr_t
+xfs_inode_validate_cowextsize(
+	struct xfs_mount		*mp,
+	uint32_t			cowextsize,
+	uint16_t			mode,
+	uint16_t			flags,
+	uint64_t			flags2)
+{
+	bool				rt_flag;
+	bool				hint_flag;
+	uint32_t			cowextsize_bytes;
+
+	rt_flag = (flags & XFS_DIFLAG_REALTIME);
+	hint_flag = (flags2 & XFS_DIFLAG2_COWEXTSIZE);
+	cowextsize_bytes = XFS_FSB_TO_B(mp, cowextsize);
+
+	if (hint_flag && !xfs_sb_version_hasreflink(&mp->m_sb))
+		return __this_address;
+
+	if (hint_flag && !(S_ISDIR(mode) || S_ISREG(mode)))
+		return __this_address;
+
+	if (hint_flag && cowextsize == 0)
+		return __this_address;
+
+	if (!hint_flag && cowextsize != 0)
+		return __this_address;
+
+	if (hint_flag && rt_flag)
+		return __this_address;
+
+	if (cowextsize_bytes % mp->m_sb.sb_blocksize)
+		return __this_address;
+
+	if (cowextsize > MAXEXTLEN)
+		return __this_address;
+
+	if (cowextsize > mp->m_sb.sb_agblocks / 2)
+		return __this_address;
+
+	return NULL;
+}
diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h
index 8a5e1da..d9a376a 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.h
+++ b/fs/xfs/libxfs/xfs_inode_buf.h
@@ -84,5 +84,10 @@ void	xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
 
 xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
 			   struct xfs_dinode *dip);
+xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
+		uint32_t extsize, uint16_t mode, uint16_t flags);
+xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
+		uint32_t cowextsize, uint16_t mode, uint16_t flags,
+		uint64_t flags2);
 
 #endif	/* __XFS_INODE_BUF_H__ */
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index 9eadca9..25bca48 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -89,12 +89,7 @@ xfs_scrub_setup_inode(
 
 /* Inode core */
 
-/*
- * Validate di_extsize hint.
- *
- * The rules are documented at xfs_ioctl_setattr_check_extsize().
- * These functions must be kept in sync with each other.
- */
+/* Validate di_extsize hint. */
 STATIC void
 xfs_scrub_inode_extsize(
 	struct xfs_scrub_context	*sc,
@@ -103,52 +98,12 @@ xfs_scrub_inode_extsize(
 	uint16_t			mode,
 	uint16_t			flags)
 {
-	struct xfs_mount		*mp = sc->mp;
-	bool				rt_flag;
-	bool				hint_flag;
-	bool				inherit_flag;
-	uint32_t			extsize;
-	uint32_t			extsize_bytes;
-	uint32_t			blocksize_bytes;
-
-	rt_flag = (flags & XFS_DIFLAG_REALTIME);
-	hint_flag = (flags & XFS_DIFLAG_EXTSIZE);
-	inherit_flag = (flags & XFS_DIFLAG_EXTSZINHERIT);
-	extsize = be32_to_cpu(dip->di_extsize);
-	extsize_bytes = XFS_FSB_TO_B(sc->mp, extsize);
-
-	if (rt_flag)
-		blocksize_bytes = mp->m_sb.sb_rextsize << mp->m_sb.sb_blocklog;
-	else
-		blocksize_bytes = mp->m_sb.sb_blocksize;
-
-	if ((hint_flag || inherit_flag) && !(S_ISDIR(mode) || S_ISREG(mode)))
-		goto bad;
-
-	if (hint_flag && !S_ISREG(mode))
-		goto bad;
-
-	if (inherit_flag && !S_ISDIR(mode))
-		goto bad;
+	xfs_failaddr_t			fa;
 
-	if ((hint_flag || inherit_flag) && extsize == 0)
-		goto bad;
-
-	if (!(hint_flag || inherit_flag) && extsize != 0)
-		goto bad;
-
-	if (extsize_bytes % blocksize_bytes)
-		goto bad;
-
-	if (extsize > MAXEXTLEN)
-		goto bad;
-
-	if (!rt_flag && extsize > mp->m_sb.sb_agblocks / 2)
-		goto bad;
-
-	return;
-bad:
-	xfs_scrub_ino_set_corrupt(sc, ino);
+	fa = xfs_inode_validate_extsize(sc->mp, be32_to_cpu(dip->di_extsize),
+			mode, flags);
+	if (fa)
+		xfs_scrub_ino_set_corrupt(sc, ino);
 }
 
 /*
@@ -166,44 +121,13 @@ xfs_scrub_inode_cowextsize(
 	uint16_t			flags,
 	uint64_t			flags2)
 {
-	struct xfs_mount		*mp = sc->mp;
-	bool				rt_flag;
-	bool				hint_flag;
-	uint32_t			extsize;
-	uint32_t			extsize_bytes;
-
-	rt_flag = (flags & XFS_DIFLAG_REALTIME);
-	hint_flag = (flags2 & XFS_DIFLAG2_COWEXTSIZE);
-	extsize = be32_to_cpu(dip->di_cowextsize);
-	extsize_bytes = XFS_FSB_TO_B(sc->mp, extsize);
-
-	if (hint_flag && !xfs_sb_version_hasreflink(&mp->m_sb))
-		goto bad;
-
-	if (hint_flag && !(S_ISDIR(mode) || S_ISREG(mode)))
-		goto bad;
-
-	if (hint_flag && extsize == 0)
-		goto bad;
-
-	if (!hint_flag && extsize != 0)
-		goto bad;
+	xfs_failaddr_t			fa;
 
-	if (hint_flag && rt_flag)
-		goto bad;
-
-	if (extsize_bytes % mp->m_sb.sb_blocksize)
-		goto bad;
-
-	if (extsize > MAXEXTLEN)
-		goto bad;
-
-	if (extsize > mp->m_sb.sb_agblocks / 2)
-		goto bad;
-
-	return;
-bad:
-	xfs_scrub_ino_set_corrupt(sc, ino);
+	fa = xfs_inode_validate_cowextsize(sc->mp,
+			be32_to_cpu(dip->di_cowextsize), mode, flags,
+			flags2);
+	if (fa)
+		xfs_scrub_ino_set_corrupt(sc, ino);
 }
 
 /* Make sure the di_flags make sense for the inode. */


      parent reply	other threads:[~2018-02-23  2:01 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-23  2:00 [PATCH 0/8] xfs: online scrub fixes Darrick J. Wong
2018-02-23  2:00 ` [PATCH 1/8] xfs: refactor bmap record valiation Darrick J. Wong
2018-02-23  2:00 ` [PATCH 2/8] xfs: refactor inode verifier error logging Darrick J. Wong
2018-02-23  2:00 ` [PATCH 3/8] xfs: refactor inode buffer " Darrick J. Wong
2018-02-23  2:00 ` [PATCH 4/8] xfs: bmap scrubber should do rmap xref with bmap for sparse files Darrick J. Wong
2018-02-23  2:00 ` [PATCH 5/8] xfs: inode scrubber shouldn't bother with raw checks Darrick J. Wong
2018-02-23  2:01 ` [PATCH 6/8] xfs: remove xfs_buf parameter from inode scrub methods Darrick J. Wong
2018-02-23  2:01 ` [PATCH 7/8] xfs: record inode buf errors as a xref error in inode scrubber Darrick J. Wong
2018-02-23  2:01 ` Darrick J. Wong [this message]

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