On Saturday 20 June 2020 12:40:57 PM IST Christoph Hellwig wrote:
> In preparation of removing the historic icinode struct, move the
> forkoff field into the containing xfs_inode structure.
>
The changes look good to me.
Reviewed-by: Chandan Babu R <chandanrlinux@xxxxxxxxx>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> fs/xfs/libxfs/xfs_attr_leaf.c | 22 +++++++++++-----------
> fs/xfs/libxfs/xfs_bmap.c | 32 ++++++++++++++++----------------
> fs/xfs/libxfs/xfs_inode_buf.c | 4 ++--
> fs/xfs/libxfs/xfs_inode_buf.h | 1 -
> fs/xfs/libxfs/xfs_inode_fork.h | 4 ++--
> fs/xfs/xfs_icache.c | 2 +-
> fs/xfs/xfs_inode.c | 8 ++++----
> fs/xfs/xfs_inode.h | 1 +
> fs/xfs/xfs_inode_item.c | 2 +-
> 9 files changed, 38 insertions(+), 38 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
> index 2f7e89e4be3e3f..3dca59de331fdf 100644
> --- a/fs/xfs/libxfs/xfs_attr_leaf.c
> +++ b/fs/xfs/libxfs/xfs_attr_leaf.c
> @@ -518,10 +518,10 @@ xfs_attr_copy_value(
> * Query whether the requested number of additional bytes of extended
> * attribute space will be able to fit inline.
> *
> - * Returns zero if not, else the di_forkoff fork offset to be used in the
> + * Returns zero if not, else the i_forkoff fork offset to be used in the
> * literal area for attribute data once the new bytes have been added.
> *
> - * di_forkoff must be 8 byte aligned, hence is stored as a >>3 value;
> + * i_forkoff must be 8 byte aligned, hence is stored as a >>3 value;
> * special case for dev/uuid inodes, they have fixed size data forks.
> */
> int
> @@ -554,7 +554,7 @@ xfs_attr_shortform_bytesfit(
> * literal area rebalancing.
> */
> if (bytes <= XFS_IFORK_ASIZE(dp))
> - return dp->i_d.di_forkoff;
> + return dp->i_forkoff;
>
> /*
> * For attr2 we can try to move the forkoff if there is space in the
> @@ -575,7 +575,7 @@ xfs_attr_shortform_bytesfit(
> * minimum offset only needs to be the space required for
> * the btree root.
> */
> - if (!dp->i_d.di_forkoff && dp->i_df.if_bytes >
> + if (!dp->i_forkoff && dp->i_df.if_bytes >
> xfs_default_attroffset(dp))
> dsize = XFS_BMDR_SPACE_CALC(MINDBTPTRS);
> break;
> @@ -586,10 +586,10 @@ xfs_attr_shortform_bytesfit(
> * minforkoff to where the btree root can finish so we have
> * plenty of room for attrs
> */
> - if (dp->i_d.di_forkoff) {
> - if (offset < dp->i_d.di_forkoff)
> + if (dp->i_forkoff) {
> + if (offset < dp->i_forkoff)
> return 0;
> - return dp->i_d.di_forkoff;
> + return dp->i_forkoff;
> }
> dsize = XFS_BMAP_BROOT_SPACE(mp, dp->i_df.if_broot);
> break;
> @@ -677,7 +677,7 @@ xfs_attr_shortform_add(xfs_da_args_t *args, int forkoff)
>
> dp = args->dp;
> mp = dp->i_mount;
> - dp->i_d.di_forkoff = forkoff;
> + dp->i_forkoff = forkoff;
>
> ifp = dp->i_afp;
> ASSERT(ifp->if_flags & XFS_IFINLINE);
> @@ -720,7 +720,7 @@ xfs_attr_fork_remove(
> xfs_idestroy_fork(ip->i_afp);
> kmem_cache_free(xfs_ifork_zone, ip->i_afp);
> ip->i_afp = NULL;
> - ip->i_d.di_forkoff = 0;
> + ip->i_forkoff = 0;
> xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
> }
>
> @@ -775,8 +775,8 @@ xfs_attr_shortform_remove(xfs_da_args_t *args)
> xfs_attr_fork_remove(dp, args->trans);
> } else {
> xfs_idata_realloc(dp, -size, XFS_ATTR_FORK);
> - dp->i_d.di_forkoff = xfs_attr_shortform_bytesfit(dp, totsize);
> - ASSERT(dp->i_d.di_forkoff);
> + dp->i_forkoff = xfs_attr_shortform_bytesfit(dp, totsize);
> + ASSERT(dp->i_forkoff);
> ASSERT(totsize > sizeof(xfs_attr_sf_hdr_t) ||
> (args->op_flags & XFS_DA_OP_ADDNAME) ||
> !(mp->m_flags & XFS_MOUNT_ATTR2) ||
> diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
> index 692159357ed8e5..7e7e4459a606f1 100644
> --- a/fs/xfs/libxfs/xfs_bmap.c
> +++ b/fs/xfs/libxfs/xfs_bmap.c
> @@ -66,13 +66,13 @@ xfs_bmap_compute_maxlevels(
> * either a signed 32-bit number for the data fork, or a signed 16-bit
> * number for the attr fork.
> *
> - * Note that we can no longer assume that if we are in ATTR1 that
> - * the fork offset of all the inodes will be
> - * (xfs_default_attroffset(ip) >> 3) because we could have mounted
> - * with ATTR2 and then mounted back with ATTR1, keeping the
> - * di_forkoff's fixed but probably at various positions. Therefore,
> - * for both ATTR1 and ATTR2 we have to assume the worst case scenario
> - * of a minimum size available.
> + * Note that we can no longer assume that if we are in ATTR1 that the
> + * fork offset of all the inodes will be
> + * (xfs_default_attroffset(ip) >> 3) because we could have mounted with
> + * ATTR2 and then mounted back with ATTR1, keeping the i_forkoff's fixed
> + * but probably at various positions. Therefore, for both ATTR1 and
> + * ATTR2 we have to assume the worst case scenario of a minimum size
> + * available.
> */
> if (whichfork == XFS_DATA_FORK) {
> maxleafents = MAXEXTNUM;
> @@ -205,9 +205,9 @@ xfs_default_attroffset(
> }
>
> /*
> - * Helper routine to reset inode di_forkoff field when switching
> - * attribute fork from local to extent format - we reset it where
> - * possible to make space available for inline data fork extents.
> + * Helper routine to reset inode i_forkoff field when switching attribute fork
> + * from local to extent format - we reset it where possible to make space
> + * available for inline data fork extents.
> */
> STATIC void
> xfs_bmap_forkoff_reset(
> @@ -219,8 +219,8 @@ xfs_bmap_forkoff_reset(
> ip->i_df.if_format != XFS_DINODE_FMT_BTREE) {
> uint dfl_forkoff = xfs_default_attroffset(ip) >> 3;
>
> - if (dfl_forkoff > ip->i_d.di_forkoff)
> - ip->i_d.di_forkoff = dfl_forkoff;
> + if (dfl_forkoff > ip->i_forkoff)
> + ip->i_forkoff = dfl_forkoff;
> }
> }
>
> @@ -1035,14 +1035,14 @@ xfs_bmap_set_attrforkoff(
> {
> switch (ip->i_df.if_format) {
> case XFS_DINODE_FMT_DEV:
> - ip->i_d.di_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
> + ip->i_forkoff = roundup(sizeof(xfs_dev_t), 8) >> 3;
> break;
> case XFS_DINODE_FMT_LOCAL:
> case XFS_DINODE_FMT_EXTENTS:
> case XFS_DINODE_FMT_BTREE:
> - ip->i_d.di_forkoff = xfs_attr_shortform_bytesfit(ip, size);
> - if (!ip->i_d.di_forkoff)
> - ip->i_d.di_forkoff = xfs_default_attroffset(ip) >> 3;
> + ip->i_forkoff = xfs_attr_shortform_bytesfit(ip, size);
> + if (!ip->i_forkoff)
> + ip->i_forkoff = xfs_default_attroffset(ip) >> 3;
> else if ((ip->i_mount->m_flags & XFS_MOUNT_ATTR2) && version)
> *version = 2;
> break;
> diff --git a/fs/xfs/libxfs/xfs_inode_buf.c b/fs/xfs/libxfs/xfs_inode_buf.c
> index 8c4b7bd69285fa..69a6844b1698d0 100644
> --- a/fs/xfs/libxfs/xfs_inode_buf.c
> +++ b/fs/xfs/libxfs/xfs_inode_buf.c
> @@ -245,7 +245,7 @@ xfs_inode_from_disk(
> ip->i_disk_size = be64_to_cpu(from->di_size);
> ip->i_nblocks = be64_to_cpu(from->di_nblocks);
> ip->i_extsize = be32_to_cpu(from->di_extsize);
> - to->di_forkoff = from->di_forkoff;
> + ip->i_forkoff = from->di_forkoff;
> to->di_dmevmask = be32_to_cpu(from->di_dmevmask);
> to->di_dmstate = be16_to_cpu(from->di_dmstate);
> to->di_flags = be16_to_cpu(from->di_flags);
> @@ -310,7 +310,7 @@ xfs_inode_to_disk(
> to->di_extsize = cpu_to_be32(ip->i_extsize);
> to->di_nextents = cpu_to_be32(xfs_ifork_nextents(&ip->i_df));
> to->di_anextents = cpu_to_be16(xfs_ifork_nextents(ip->i_afp));
> - to->di_forkoff = from->di_forkoff;
> + to->di_forkoff = ip->i_forkoff;
> to->di_aformat = xfs_ifork_format(ip->i_afp);
> to->di_dmevmask = cpu_to_be32(from->di_dmevmask);
> to->di_dmstate = cpu_to_be16(from->di_dmstate);
> diff --git a/fs/xfs/libxfs/xfs_inode_buf.h b/fs/xfs/libxfs/xfs_inode_buf.h
> index 8cc96f2766ff4f..032486dbf82757 100644
> --- a/fs/xfs/libxfs/xfs_inode_buf.h
> +++ b/fs/xfs/libxfs/xfs_inode_buf.h
> @@ -16,7 +16,6 @@ struct xfs_dinode;
> * format specific structures at the appropriate time.
> */
> struct xfs_icdinode {
> - uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
> uint32_t di_dmevmask; /* DMIG event mask */
> uint16_t di_dmstate; /* DMIG state info */
> uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
> diff --git a/fs/xfs/libxfs/xfs_inode_fork.h b/fs/xfs/libxfs/xfs_inode_fork.h
> index a4953e95c4f3f6..7d6982b23446c2 100644
> --- a/fs/xfs/libxfs/xfs_inode_fork.h
> +++ b/fs/xfs/libxfs/xfs_inode_fork.h
> @@ -38,8 +38,8 @@ struct xfs_ifork {
> * Fork handling.
> */
>
> -#define XFS_IFORK_Q(ip) ((ip)->i_d.di_forkoff != 0)
> -#define XFS_IFORK_BOFF(ip) ((int)((ip)->i_d.di_forkoff << 3))
> +#define XFS_IFORK_Q(ip) ((ip)->i_forkoff != 0)
> +#define XFS_IFORK_BOFF(ip) ((int)((ip)->i_forkoff << 3))
>
> #define XFS_IFORK_PTR(ip,w) \
> ((w) == XFS_DATA_FORK ? \
> diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
> index e6b40f7035aa5a..ccd437432aa963 100644
> --- a/fs/xfs/xfs_icache.c
> +++ b/fs/xfs/xfs_icache.c
> @@ -67,7 +67,7 @@ xfs_inode_alloc(
> ip->i_flags = 0;
> ip->i_delayed_blks = 0;
> ip->i_nblocks = 0;
> - ip->i_d.di_forkoff = 0;
> + ip->i_forkoff = 0;
> ip->i_sick = 0;
> ip->i_checked = 0;
> INIT_WORK(&ip->i_ioend_work, xfs_end_io);
> diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
> index fd111e05c0bb2e..764f91610d1496 100644
> --- a/fs/xfs/xfs_inode.c
> +++ b/fs/xfs/xfs_inode.c
> @@ -1858,7 +1858,7 @@ xfs_inactive(
> }
>
> ASSERT(!ip->i_afp);
> - ASSERT(ip->i_d.di_forkoff == 0);
> + ASSERT(ip->i_forkoff == 0);
>
> /*
> * Free the inode.
> @@ -2758,7 +2758,7 @@ xfs_ifree(
> ip->i_d.di_flags = 0;
> ip->i_d.di_flags2 = 0;
> ip->i_d.di_dmevmask = 0;
> - ip->i_d.di_forkoff = 0; /* mark the attr fork not in use */
> + ip->i_forkoff = 0; /* mark the attr fork not in use */
> ip->i_df.if_format = XFS_DINODE_FMT_EXTENTS;
>
> /* Don't attempt to replay owner changes for a deleted inode */
> @@ -3756,11 +3756,11 @@ xfs_iflush_int(
> ip->i_nblocks, ip);
> goto flush_out;
> }
> - if (XFS_TEST_ERROR(ip->i_d.di_forkoff > mp->m_sb.sb_inodesize,
> + if (XFS_TEST_ERROR(ip->i_forkoff > mp->m_sb.sb_inodesize,
> mp, XFS_ERRTAG_IFLUSH_6)) {
> xfs_alert_tag(mp, XFS_PTAG_IFLUSH,
> "%s: bad inode %Lu, forkoff 0x%x, ptr "PTR_FMT,
> - __func__, ip->i_ino, ip->i_d.di_forkoff, ip);
> + __func__, ip->i_ino, ip->i_forkoff, ip);
> goto flush_out;
> }
>
> diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
> index a0444b9ce3f792..31440ab88cf141 100644
> --- a/fs/xfs/xfs_inode.h
> +++ b/fs/xfs/xfs_inode.h
> @@ -63,6 +63,7 @@ typedef struct xfs_inode {
> xfs_extlen_t i_cowextsize; /* basic cow extent size */
> uint16_t i_flushiter; /* incremented on flush */
> };
> + uint8_t i_forkoff; /* attr fork offset >> 3 */
>
> struct xfs_icdinode i_d; /* most of ondisk inode */
>
> diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
> index 8357fe37d3eb8a..a83ddc4e029f0f 100644
> --- a/fs/xfs/xfs_inode_item.c
> +++ b/fs/xfs/xfs_inode_item.c
> @@ -328,7 +328,7 @@ xfs_inode_to_log_dinode(
> to->di_extsize = ip->i_extsize;
> to->di_nextents = xfs_ifork_nextents(&ip->i_df);
> to->di_anextents = xfs_ifork_nextents(ip->i_afp);
> - to->di_forkoff = from->di_forkoff;
> + to->di_forkoff = ip->i_forkoff;
> to->di_aformat = xfs_ifork_format(ip->i_afp);
> to->di_dmevmask = from->di_dmevmask;
> to->di_dmstate = from->di_dmstate;
>
--
chandan
