[PATCH 1/5] xfs: add a new xfs_sb_version_has_large_dinode helper

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Add a new wrapper to check if a file system supports the newer large
dinode format.  Previously we uses xfs_sb_version_hascrc for that,
which is technically correct but a little confusing to read.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
 fs/xfs/libxfs/xfs_format.h     |  5 +++++
 fs/xfs/libxfs/xfs_ialloc.c     |  4 ++--
 fs/xfs/libxfs/xfs_inode_buf.c  | 12 ++++++++----
 fs/xfs/libxfs/xfs_trans_resv.c |  2 +-
 fs/xfs/xfs_buf_item.c          |  2 +-
 fs/xfs/xfs_log_recover.c       |  2 +-
 6 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index cd814f99da28..a28bf6a978ad 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -497,6 +497,11 @@ static inline bool xfs_sb_version_hascrc(struct xfs_sb *sbp)
 	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
 }
 
+static inline bool xfs_sb_version_has_large_dinode(struct xfs_sb *sbp)
+{
+	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
+}
+
 static inline bool xfs_sb_version_has_pquotino(struct xfs_sb *sbp)
 {
 	return XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_5;
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c
index b4a404278935..6adffaa68fb8 100644
--- a/fs/xfs/libxfs/xfs_ialloc.c
+++ b/fs/xfs/libxfs/xfs_ialloc.c
@@ -304,7 +304,7 @@ xfs_ialloc_inode_init(
 	 * That means for v3 inode we log the entire buffer rather than just the
 	 * inode cores.
 	 */
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_sb_version_has_large_dinode(&mp->m_sb)) {
 		version = 3;
 		ino = XFS_AGINO_TO_INO(mp, agno, XFS_AGB_TO_AGINO(mp, agbno));
 
@@ -2872,7 +2872,7 @@ xfs_ialloc_setup_geometry(
 	 * cannot change the behavior.
 	 */
 	igeo->inode_cluster_size_raw = XFS_INODE_BIG_CLUSTER_SIZE;
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+	if (xfs_sb_version_has_large_dinode(&mp->m_sb)) {
 		int	new_size = igeo->inode_cluster_size_raw;
 
 		new_size *= mp->m_sb.sb_inodesize / XFS_DINODE_MIN_SIZE;
diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
index 17e88a8c8353..a5aa2f220c28 100644
--- a/fs/xfs/libxfs/xfs_inode_buf.c
+++ b/fs/xfs/libxfs/xfs_inode_buf.c
@@ -44,14 +44,18 @@ xfs_inobp_check(
 }
 #endif
 
+/*
+ * v4 and earlier file systems only support the small dinode, and must use the
+ * v1 or v2 inode formats.  v5 file systems support a larger dinode, and must
+ * use the v3 inode format.
+ */
 bool
 xfs_dinode_good_version(
 	struct xfs_mount *mp,
 	__u8		version)
 {
-	if (xfs_sb_version_hascrc(&mp->m_sb))
+	if (xfs_sb_version_has_large_dinode(&mp->m_sb))
 		return version == 3;
-
 	return version == 1 || version == 2;
 }
 
@@ -454,7 +458,7 @@ xfs_dinode_verify(
 
 	/* Verify v3 integrity information first */
 	if (dip->di_version >= 3) {
-		if (!xfs_sb_version_hascrc(&mp->m_sb))
+		if (!xfs_sb_version_has_large_dinode(&mp->m_sb))
 			return __this_address;
 		if (!xfs_verify_cksum((char *)dip, mp->m_sb.sb_inodesize,
 				      XFS_DINODE_CRC_OFF))
@@ -629,7 +633,7 @@ xfs_iread(
 
 	/* shortcut IO on inode allocation if possible */
 	if ((iget_flags & XFS_IGET_CREATE) &&
-	    xfs_sb_version_hascrc(&mp->m_sb) &&
+	    xfs_sb_version_has_large_dinode(&mp->m_sb) &&
 	    !(mp->m_flags & XFS_MOUNT_IKEEP)) {
 		VFS_I(ip)->i_generation = prandom_u32();
 		ip->i_d.di_version = 3;
diff --git a/fs/xfs/libxfs/xfs_trans_resv.c b/fs/xfs/libxfs/xfs_trans_resv.c
index 7a9c04920505..294e23d47912 100644
--- a/fs/xfs/libxfs/xfs_trans_resv.c
+++ b/fs/xfs/libxfs/xfs_trans_resv.c
@@ -187,7 +187,7 @@ xfs_calc_inode_chunk_res(
 			       XFS_FSB_TO_B(mp, 1));
 	if (alloc) {
 		/* icreate tx uses ordered buffers */
-		if (xfs_sb_version_hascrc(&mp->m_sb))
+		if (xfs_sb_version_has_large_dinode(&mp->m_sb))
 			return res;
 		size = XFS_FSB_TO_B(mp, 1);
 	}
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index 663810e6cd59..d004ae3455d7 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -345,7 +345,7 @@ xfs_buf_item_format(
 	 * occurs during recovery.
 	 */
 	if (bip->bli_flags & XFS_BLI_INODE_BUF) {
-		if (xfs_sb_version_hascrc(&lip->li_mountp->m_sb) ||
+		if (xfs_sb_version_has_large_dinode(&lip->li_mountp->m_sb) ||
 		    !((bip->bli_flags & XFS_BLI_INODE_ALLOC_BUF) &&
 		      xfs_log_item_in_current_chkpt(lip)))
 			bip->__bli_format.blf_flags |= XFS_BLF_INODE_BUF;
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 6abc0863c9c3..e5e976b5cc11 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2997,7 +2997,7 @@ xlog_recover_inode_pass2(
 	 * superblock flag to determine whether we need to look at di_flushiter
 	 * to skip replay when the on disk inode is newer than the log one
 	 */
-	if (!xfs_sb_version_hascrc(&mp->m_sb) &&
+	if (!xfs_sb_version_has_large_dinode(&mp->m_sb) &&
 	    ldip->di_flushiter < be16_to_cpu(dip->di_flushiter)) {
 		/*
 		 * Deal with the wrap case, DI_MAX_FLUSH is less
-- 
2.24.1




[Index of Archives]     [XFS Filesystem Development (older mail)]     [Linux Filesystem Development]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux RAID]     [Linux SCSI]


  Powered by Linux