This commit changes xfs_attr_leaf_newentsize() to explicitly accept name and value length instead of a pointer to struct xfs_da_args. A future commit will need to invoke xfs_attr_leaf_newentsize() from functions that do not have a struct xfs_da_args to pass in. Signed-off-by: Chandan Rajendra <chandanrlinux@xxxxxxxxx> --- Changelog: V1 -> V2: 1. Use convenience variables to reduce indentation of code. V2 -> V3: 1. Introduce 'struct xfs_attr_set_resv' to collect various block size reservations when inserting an xattr. 2. Add xfs_calc_attr_res() to calculate the total log reservation to required when inserting an xattr. V3 -> V4: 1. Rebase the patchset on top of Christoph's "Clean attr interface" patchset. The patchset can be obtained from https://github.com/chandanr/linux/tree/xfs-fix-attr-resv-calc-v4. 2. Split the patchset into - Patches which refactor the existing calculation in xfs_attr_calc_size(). - One patch which fixes the calculation inside xfs_attr_calc_size(). 3. Fix indentation issues. 4. Pass attribute geometry pointer to xfs_attr_leaf_newentsize() instead of a pointer to xfs_mount. fs/xfs/libxfs/xfs_attr.c | 3 ++- fs/xfs/libxfs/xfs_attr_leaf.c | 39 +++++++++++++++++++++++------------ fs/xfs/libxfs/xfs_attr_leaf.h | 3 ++- 3 files changed, 30 insertions(+), 15 deletions(-) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 23e0d8ce39f8c..1875210cc8e40 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -149,7 +149,8 @@ xfs_attr_calc_size( * Determine space new attribute will use, and if it would be * "local" or "remote" (note: local != inline). */ - size = xfs_attr_leaf_newentsize(args, local); + size = xfs_attr_leaf_newentsize(args->geo, args->namelen, + args->valuelen, local); nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK); if (*local) { if (size > (args->geo->blksize / 2)) { diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index fae322105457a..65a3bf40c4f9d 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -1330,7 +1330,8 @@ xfs_attr3_leaf_add( leaf = bp->b_addr; xfs_attr3_leaf_hdr_from_disk(args->geo, &ichdr, leaf); ASSERT(args->index >= 0 && args->index <= ichdr.count); - entsize = xfs_attr_leaf_newentsize(args, NULL); + entsize = xfs_attr_leaf_newentsize(args->geo, args->namelen, + args->valuelen, NULL); /* * Search through freemap for first-fit on new name length. @@ -1403,6 +1404,7 @@ xfs_attr3_leaf_add_work( struct xfs_attr_leaf_name_local *name_loc; struct xfs_attr_leaf_name_remote *name_rmt; struct xfs_mount *mp; + int entsize; int tmp; int i; @@ -1432,11 +1434,14 @@ xfs_attr3_leaf_add_work( ASSERT(ichdr->freemap[mapindex].base < args->geo->blksize); ASSERT((ichdr->freemap[mapindex].base & 0x3) == 0); ASSERT(ichdr->freemap[mapindex].size >= - xfs_attr_leaf_newentsize(args, NULL)); + xfs_attr_leaf_newentsize(args->geo, args->namelen, + args->valuelen, NULL)); ASSERT(ichdr->freemap[mapindex].size < args->geo->blksize); ASSERT((ichdr->freemap[mapindex].size & 0x3) == 0); - ichdr->freemap[mapindex].size -= xfs_attr_leaf_newentsize(args, &tmp); + entsize = xfs_attr_leaf_newentsize(args->geo, args->namelen, + args->valuelen, &tmp); + ichdr->freemap[mapindex].size -= entsize; entry->nameidx = cpu_to_be16(ichdr->freemap[mapindex].base + ichdr->freemap[mapindex].size); @@ -1824,6 +1829,8 @@ xfs_attr3_leaf_figure_balance( struct xfs_attr_leafblock *leaf1 = blk1->bp->b_addr; struct xfs_attr_leafblock *leaf2 = blk2->bp->b_addr; struct xfs_attr_leaf_entry *entry; + struct xfs_da_args *args; + int entsize; int count; int max; int index; @@ -1833,14 +1840,16 @@ xfs_attr3_leaf_figure_balance( int foundit = 0; int tmp; + args = state->args; /* * Examine entries until we reduce the absolute difference in * byte usage between the two blocks to a minimum. */ max = ichdr1->count + ichdr2->count; half = (max + 1) * sizeof(*entry); - half += ichdr1->usedbytes + ichdr2->usedbytes + - xfs_attr_leaf_newentsize(state->args, NULL); + entsize = xfs_attr_leaf_newentsize(args->geo, args->namelen, + args->valuelen, NULL); + half += ichdr1->usedbytes + ichdr2->usedbytes + entsize; half /= 2; lastdelta = state->args->geo->blksize; entry = xfs_attr3_leaf_entryp(leaf1); @@ -1851,8 +1860,9 @@ xfs_attr3_leaf_figure_balance( * The new entry is in the first block, account for it. */ if (count == blk1->index) { - tmp = totallen + sizeof(*entry) + - xfs_attr_leaf_newentsize(state->args, NULL); + entsize = xfs_attr_leaf_newentsize(args->geo, + args->namelen, args->valuelen, NULL); + tmp = totallen + sizeof(*entry) + entsize; if (XFS_ATTR_ABS(half - tmp) > lastdelta) break; lastdelta = XFS_ATTR_ABS(half - tmp); @@ -1887,8 +1897,9 @@ xfs_attr3_leaf_figure_balance( */ totallen -= count * sizeof(*entry); if (foundit) { - totallen -= sizeof(*entry) + - xfs_attr_leaf_newentsize(state->args, NULL); + entsize = xfs_attr_leaf_newentsize(args->geo, args->namelen, + args->valuelen, NULL); + totallen -= sizeof(*entry) + entsize; } *countarg = count; @@ -2664,20 +2675,22 @@ xfs_attr_leaf_entsize(xfs_attr_leafblock_t *leaf, int index) */ int xfs_attr_leaf_newentsize( - struct xfs_da_args *args, + struct xfs_da_geometry *geo, + int namelen, + int valuelen, int *local) { int size; - size = xfs_attr_leaf_entsize_local(args->namelen, args->valuelen); - if (size < xfs_attr_leaf_entsize_local_max(args->geo->blksize)) { + size = xfs_attr_leaf_entsize_local(namelen, valuelen); + if (size < xfs_attr_leaf_entsize_local_max(geo->blksize)) { if (local) *local = 1; return size; } if (local) *local = 0; - return xfs_attr_leaf_entsize_remote(args->namelen); + return xfs_attr_leaf_entsize_remote(namelen); } diff --git a/fs/xfs/libxfs/xfs_attr_leaf.h b/fs/xfs/libxfs/xfs_attr_leaf.h index 6dd2d937a42a3..7bc5dd6c4d66a 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.h +++ b/fs/xfs/libxfs/xfs_attr_leaf.h @@ -96,7 +96,8 @@ void xfs_attr3_leaf_unbalance(struct xfs_da_state *state, xfs_dahash_t xfs_attr_leaf_lasthash(struct xfs_buf *bp, int *count); int xfs_attr_leaf_order(struct xfs_buf *leaf1_bp, struct xfs_buf *leaf2_bp); -int xfs_attr_leaf_newentsize(struct xfs_da_args *args, int *local); +int xfs_attr_leaf_newentsize(struct xfs_da_geometry *geo, int namelen, + int valuelen, int *local); int xfs_attr3_leaf_read(struct xfs_trans *tp, struct xfs_inode *dp, xfs_dablk_t bno, struct xfs_buf **bpp); void xfs_attr3_leaf_hdr_from_disk(struct xfs_da_geometry *geo, -- 2.19.1
