From 38c26bfd90e1999650d5ef40f90d721f05916643 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 18 Aug 2021 18:46:37 -0700 Subject: xfs: replace xfs_sb_version checks with feature flag checks Convert the xfs_sb_version_hasfoo() to checks against mp->m_features. Checks of the superblock itself during disk operations (e.g. in the read/write verifiers and the to/from disk formatters) are not converted - they operate purely on the superblock state. Everything else should use the mount features. Large parts of this conversion were done with sed with commands like this: for f in `git grep -l xfs_sb_version_has fs/xfs/*.c`; do sed -i -e 's/xfs_sb_version_has\(.*\)(&\(.*\)->m_sb)/xfs_has_\1(\2)/' $f done With manual cleanups for things like "xfs_has_extflgbit" and other little inconsistencies in naming. The result is ia lot less typing to check features and an XFS binary size reduced by a bit over 3kB: $ size -t fs/xfs/built-in.a text data bss dec hex filenam before 1130866 311352 484 1442702 16038e (TOTALS) after 1127727 311352 484 1439563 15f74b (TOTALS) Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_inode_buf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'fs/xfs/libxfs/xfs_inode_buf.c') diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 84ea2e0af9f0..698af856a7f7 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -515,7 +515,7 @@ xfs_dinode_verify( /* don't allow reflink/cowextsize if we don't have reflink */ if ((flags2 & (XFS_DIFLAG2_REFLINK | XFS_DIFLAG2_COWEXTSIZE)) && - !xfs_sb_version_hasreflink(&mp->m_sb)) + !xfs_has_reflink(mp)) return __this_address; /* only regular files get reflink */ @@ -550,7 +550,7 @@ xfs_dinode_calc_crc( if (dip->di_version < 3) return; - ASSERT(xfs_sb_version_hascrc(&mp->m_sb)); + ASSERT(xfs_has_crc(mp)); crc = xfs_start_cksum_update((char *)dip, mp->m_sb.sb_inodesize, XFS_DINODE_CRC_OFF); dip->di_crc = xfs_end_cksum(crc); @@ -677,7 +677,7 @@ xfs_inode_validate_cowextsize( hint_flag = (flags2 & XFS_DIFLAG2_COWEXTSIZE); cowextsize_bytes = XFS_FSB_TO_B(mp, cowextsize); - if (hint_flag && !xfs_sb_version_hasreflink(&mp->m_sb)) + if (hint_flag && !xfs_has_reflink(mp)) return __this_address; if (hint_flag && !(S_ISDIR(mode) || S_ISREG(mode))) -- cgit From ebd9027d088b3a4e49d294f79e6cadb7b7a88b28 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 18 Aug 2021 18:46:55 -0700 Subject: xfs: convert xfs_sb_version_has checks to use mount features This is a conversion of the remaining xfs_sb_version_has..(sbp) checks to use xfs_has_..(mp) feature checks. This was largely done with a vim replacement macro that did: :0,$s/xfs_sb_version_has\(.*\)&\(.*\)->m_sb/xfs_has_\1\2/g A couple of other variants were also used, and the rest touched up by hand. $ size -t fs/xfs/built-in.a text data bss dec hex filename before 1127533 311352 484 1439369 15f689 (TOTALS) after 1125360 311352 484 1437196 15ee0c (TOTALS) Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_inode_buf.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'fs/xfs/libxfs/xfs_inode_buf.c') diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 698af856a7f7..fefecdf3f632 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -192,7 +192,7 @@ xfs_inode_from_disk( * inode. If the inode is unused, mode is zero and we shouldn't mess * with the uninitialized part of it. */ - if (!xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) + if (!xfs_has_v3inodes(ip->i_mount)) ip->i_flushiter = be16_to_cpu(from->di_flushiter); inode->i_generation = be32_to_cpu(from->di_gen); inode->i_mode = be16_to_cpu(from->di_mode); @@ -235,7 +235,7 @@ xfs_inode_from_disk( if (from->di_dmevmask || from->di_dmstate) xfs_iflags_set(ip, XFS_IPRESERVE_DM_FIELDS); - if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) { + if (xfs_has_v3inodes(ip->i_mount)) { inode_set_iversion_queried(inode, be64_to_cpu(from->di_changecount)); ip->i_crtime = xfs_inode_from_disk_ts(from, from->di_crtime); @@ -313,7 +313,7 @@ xfs_inode_to_disk( to->di_aformat = xfs_ifork_format(ip->i_afp); to->di_flags = cpu_to_be16(ip->i_diflags); - if (xfs_sb_version_has_v3inode(&ip->i_mount->m_sb)) { + if (xfs_has_v3inodes(ip->i_mount)) { to->di_version = 3; to->di_changecount = cpu_to_be64(inode_peek_iversion(inode)); to->di_crtime = xfs_inode_to_disk_ts(ip, ip->i_crtime); @@ -413,7 +413,7 @@ xfs_dinode_verify( /* Verify v3 integrity information first */ if (dip->di_version >= 3) { - if (!xfs_sb_version_has_v3inode(&mp->m_sb)) + if (!xfs_has_v3inodes(mp)) return __this_address; if (!xfs_verify_cksum((char *)dip, mp->m_sb.sb_inodesize, XFS_DINODE_CRC_OFF)) @@ -534,7 +534,7 @@ xfs_dinode_verify( /* bigtime iflag can only happen on bigtime filesystems */ if (xfs_dinode_has_bigtime(dip) && - !xfs_sb_version_hasbigtime(&mp->m_sb)) + !xfs_has_bigtime(mp)) return __this_address; return NULL; -- cgit From cf28e17c9186c83e7e8702f844bc40b6e782ce6c Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 18 Aug 2021 18:46:57 -0700 Subject: xfs: kill xfs_sb_version_has_v3inode() All callers to xfs_dinode_good_version() and XFS_DINODE_SIZE() in both the kernel and userspace have a xfs_mount structure available which means they can use mount features checks instead looking directly are the superblock. Convert these functions to take a mount and use a xfs_has_v3inodes() check and move it out of the libxfs/xfs_format.h file as it really doesn't have anything to do with the definition of the on-disk format. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_inode_buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/libxfs/xfs_inode_buf.c') diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index fefecdf3f632..036f909ff7a6 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -58,7 +58,7 @@ xfs_inode_buf_verify( dip = xfs_buf_offset(bp, (i << mp->m_sb.sb_inodelog)); unlinked_ino = be32_to_cpu(dip->di_next_unlinked); di_ok = xfs_verify_magic16(bp, dip->di_magic) && - xfs_dinode_good_version(&mp->m_sb, dip->di_version) && + xfs_dinode_good_version(mp, dip->di_version) && xfs_verify_agino_or_null(mp, agno, unlinked_ino); if (unlikely(XFS_TEST_ERROR(!di_ok, mp, XFS_ERRTAG_ITOBP_INOTOBP))) { -- cgit From 04fcad80cd068731a779fb442f78234732683755 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 18 Aug 2021 18:46:57 -0700 Subject: xfs: introduce xfs_buf_daddr() Introduce a helper function xfs_buf_daddr() to extract the disk address of the buffer from the struct xfs_buf. This will replace direct accesses to bp->b_bn and bp->b_maps[0].bm_bn, as well as the XFS_BUF_ADDR() macro. This patch introduces the helper function and replaces all uses of XFS_BUF_ADDR() as this is just a simple sed replacement. Signed-off-by: Dave Chinner Reviewed-by: Darrick J. Wong Reviewed-by: Christoph Hellwig Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_inode_buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/libxfs/xfs_inode_buf.c') diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 036f909ff7a6..83ba63b4ace4 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -48,7 +48,7 @@ xfs_inode_buf_verify( /* * Validate the magic number and version of every inode in the buffer */ - agno = xfs_daddr_to_agno(mp, XFS_BUF_ADDR(bp)); + agno = xfs_daddr_to_agno(mp, xfs_buf_daddr(bp)); ni = XFS_BB_TO_FSB(mp, bp->b_length) * mp->m_sb.sb_inopblock; for (i = 0; i < ni; i++) { int di_ok; -- cgit From 9343ee76909e3f6466d85c9ebb0e343cdf54de71 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Wed, 18 Aug 2021 18:47:05 -0700 Subject: xfs: convert bp->b_bn references to xfs_buf_daddr() Stop directly referencing b_bn in code outside the buffer cache, as b_bn is supposed to be used only as an internal cache index. Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- fs/xfs/libxfs/xfs_inode_buf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/xfs/libxfs/xfs_inode_buf.c') diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c index 83ba63b4ace4..3932b4ebf903 100644 --- a/fs/xfs/libxfs/xfs_inode_buf.c +++ b/fs/xfs/libxfs/xfs_inode_buf.c @@ -71,7 +71,7 @@ xfs_inode_buf_verify( #ifdef DEBUG xfs_alert(mp, "bad inode magic/vsn daddr %lld #%d (magic=%x)", - (unsigned long long)bp->b_bn, i, + (unsigned long long)xfs_buf_daddr(bp), i, be16_to_cpu(dip->di_magic)); #endif xfs_buf_verifier_error(bp, -EFSCORRUPTED, -- cgit