On Fri, Nov 01, 2019 at 03:07:05PM -0700, Christoph Hellwig wrote: > Just check for file-type enabled directories directly. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> Looks ok, Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> --D > --- > fs/xfs/libxfs/xfs_da_format.c | 48 ----------------- > fs/xfs/libxfs/xfs_dir2.h | 4 -- > fs/xfs/libxfs/xfs_dir2_block.c | 2 +- > fs/xfs/libxfs/xfs_dir2_priv.h | 2 + > fs/xfs/libxfs/xfs_dir2_sf.c | 99 ++++++++++++++++++++-------------- > fs/xfs/xfs_dir2_readdir.c | 7 +-- > 6 files changed, 66 insertions(+), 96 deletions(-) > > diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c > index 7858469c09e4..f80495a38a76 100644 > --- a/fs/xfs/libxfs/xfs_da_format.c > +++ b/fs/xfs/libxfs/xfs_da_format.c > @@ -15,48 +15,6 @@ > #include "xfs_dir2.h" > #include "xfs_dir2_priv.h" > > -/* > - * Shortform directory ops > - */ > -static int > -xfs_dir2_sf_entsize( > - struct xfs_dir2_sf_hdr *hdr, > - int len) > -{ > - int count = sizeof(struct xfs_dir2_sf_entry); /* namelen + offset */ > - > - count += len; /* name */ > - count += hdr->i8count ? XFS_INO64_SIZE : XFS_INO32_SIZE; /* ino # */ > - return count; > -} > - > -static int > -xfs_dir3_sf_entsize( > - struct xfs_dir2_sf_hdr *hdr, > - int len) > -{ > - return xfs_dir2_sf_entsize(hdr, len) + sizeof(uint8_t); > -} > - > -static struct xfs_dir2_sf_entry * > -xfs_dir2_sf_nextentry( > - struct xfs_dir2_sf_hdr *hdr, > - struct xfs_dir2_sf_entry *sfep) > -{ > - return (struct xfs_dir2_sf_entry *) > - ((char *)sfep + xfs_dir2_sf_entsize(hdr, sfep->namelen)); > -} > - > -static struct xfs_dir2_sf_entry * > -xfs_dir3_sf_nextentry( > - struct xfs_dir2_sf_hdr *hdr, > - struct xfs_dir2_sf_entry *sfep) > -{ > - return (struct xfs_dir2_sf_entry *) > - ((char *)sfep + xfs_dir3_sf_entsize(hdr, sfep->namelen)); > -} > - > - > /* > * For filetype enabled shortform directories, the file type field is stored at > * the end of the name. Because it's only a single byte, endian conversion is > @@ -401,8 +359,6 @@ xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr) > } > > static const struct xfs_dir_ops xfs_dir2_ops = { > - .sf_entsize = xfs_dir2_sf_entsize, > - .sf_nextentry = xfs_dir2_sf_nextentry, > .sf_get_ftype = xfs_dir2_sfe_get_ftype, > .sf_put_ftype = xfs_dir2_sfe_put_ftype, > .sf_get_ino = xfs_dir2_sfe_get_ino, > @@ -430,8 +386,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = { > }; > > static const struct xfs_dir_ops xfs_dir2_ftype_ops = { > - .sf_entsize = xfs_dir3_sf_entsize, > - .sf_nextentry = xfs_dir3_sf_nextentry, > .sf_get_ftype = xfs_dir3_sfe_get_ftype, > .sf_put_ftype = xfs_dir3_sfe_put_ftype, > .sf_get_ino = xfs_dir3_sfe_get_ino, > @@ -459,8 +413,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = { > }; > > static const struct xfs_dir_ops xfs_dir3_ops = { > - .sf_entsize = xfs_dir3_sf_entsize, > - .sf_nextentry = xfs_dir3_sf_nextentry, > .sf_get_ftype = xfs_dir3_sfe_get_ftype, > .sf_put_ftype = xfs_dir3_sfe_put_ftype, > .sf_get_ino = xfs_dir3_sfe_get_ino, > diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h > index d3a0b8daab5f..c99f0ad6607a 100644 > --- a/fs/xfs/libxfs/xfs_dir2.h > +++ b/fs/xfs/libxfs/xfs_dir2.h > @@ -32,10 +32,6 @@ extern unsigned char xfs_mode_to_ftype(int mode); > * directory operations vector for encode/decode routines > */ > struct xfs_dir_ops { > - int (*sf_entsize)(struct xfs_dir2_sf_hdr *hdr, int len); > - struct xfs_dir2_sf_entry * > - (*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr, > - struct xfs_dir2_sf_entry *sfep); > uint8_t (*sf_get_ftype)(struct xfs_dir2_sf_entry *sfep); > void (*sf_put_ftype)(struct xfs_dir2_sf_entry *sfep, > uint8_t ftype); > diff --git a/fs/xfs/libxfs/xfs_dir2_block.c b/fs/xfs/libxfs/xfs_dir2_block.c > index 2ee9fdd182e1..88b3d1884c74 100644 > --- a/fs/xfs/libxfs/xfs_dir2_block.c > +++ b/fs/xfs/libxfs/xfs_dir2_block.c > @@ -1231,7 +1231,7 @@ xfs_dir2_sf_to_block( > if (++i == sfp->count) > sfep = NULL; > else > - sfep = dp->d_ops->sf_nextentry(sfp, sfep); > + sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > } > /* Done with the temporary buffer */ > kmem_free(sfp); > diff --git a/fs/xfs/libxfs/xfs_dir2_priv.h b/fs/xfs/libxfs/xfs_dir2_priv.h > index d5104fdb8543..a96b9ba7909b 100644 > --- a/fs/xfs/libxfs/xfs_dir2_priv.h > +++ b/fs/xfs/libxfs/xfs_dir2_priv.h > @@ -137,6 +137,8 @@ extern int xfs_dir2_free_read(struct xfs_trans *tp, struct xfs_inode *dp, > /* xfs_dir2_sf.c */ > xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *hdr); > void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr *hdr, xfs_ino_t ino); > +struct xfs_dir2_sf_entry *xfs_dir2_sf_nextentry(struct xfs_mount *mp, > + struct xfs_dir2_sf_hdr *hdr, struct xfs_dir2_sf_entry *sfep); > extern int xfs_dir2_block_sfsize(struct xfs_inode *dp, > struct xfs_dir2_data_hdr *block, struct xfs_dir2_sf_hdr *sfhp); > extern int xfs_dir2_block_to_sf(struct xfs_da_args *args, struct xfs_buf *bp, > diff --git a/fs/xfs/libxfs/xfs_dir2_sf.c b/fs/xfs/libxfs/xfs_dir2_sf.c > index 1d7c26d0157c..f3a4f0ddfc1a 100644 > --- a/fs/xfs/libxfs/xfs_dir2_sf.c > +++ b/fs/xfs/libxfs/xfs_dir2_sf.c > @@ -37,6 +37,32 @@ static void xfs_dir2_sf_check(xfs_da_args_t *args); > static void xfs_dir2_sf_toino4(xfs_da_args_t *args); > static void xfs_dir2_sf_toino8(xfs_da_args_t *args); > > +static int > +xfs_dir2_sf_entsize( > + struct xfs_mount *mp, > + struct xfs_dir2_sf_hdr *hdr, > + int len) > +{ > + int count = len; > + > + count += sizeof(struct xfs_dir2_sf_entry); /* namelen + offset */ > + count += hdr->i8count ? XFS_INO64_SIZE : XFS_INO32_SIZE; /* ino # */ > + > + if (xfs_sb_version_hasftype(&mp->m_sb)) > + count += sizeof(uint8_t); > + return count; > +} > + > +struct xfs_dir2_sf_entry * > +xfs_dir2_sf_nextentry( > + struct xfs_mount *mp, > + struct xfs_dir2_sf_hdr *hdr, > + struct xfs_dir2_sf_entry *sfep) > +{ > + return (struct xfs_dir2_sf_entry *) > + ((char *)sfep + xfs_dir2_sf_entsize(mp, hdr, sfep->namelen)); > +} > + > /* > * Given a block directory (dp/block), calculate its size as a shortform (sf) > * directory and a header for the sf directory, if it will fit it the > @@ -219,7 +245,7 @@ xfs_dir2_block_to_sf( > dp->d_ops->sf_put_ftype(sfep, > dp->d_ops->data_get_ftype(dep)); > > - sfep = dp->d_ops->sf_nextentry(sfp, sfep); > + sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > } > ptr += dp->d_ops->data_entsize(dep->namelen); > } > @@ -291,7 +317,7 @@ xfs_dir2_sf_addname( > /* > * Compute entry (and change in) size. > */ > - incr_isize = dp->d_ops->sf_entsize(sfp, args->namelen); > + incr_isize = xfs_dir2_sf_entsize(dp->i_mount, sfp, args->namelen); > objchange = 0; > > /* > @@ -364,18 +390,17 @@ xfs_dir2_sf_addname_easy( > xfs_dir2_data_aoff_t offset, /* offset to use for new ent */ > int new_isize) /* new directory size */ > { > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > int byteoff; /* byte offset in sf dir */ > - xfs_inode_t *dp; /* incore directory inode */ > xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ > > - dp = args->dp; > - > sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; > byteoff = (int)((char *)sfep - (char *)sfp); > /* > * Grow the in-inode space. > */ > - xfs_idata_realloc(dp, dp->d_ops->sf_entsize(sfp, args->namelen), > + xfs_idata_realloc(dp, xfs_dir2_sf_entsize(mp, sfp, args->namelen), > XFS_DATA_FORK); > /* > * Need to set up again due to realloc of the inode data. > @@ -416,9 +441,10 @@ xfs_dir2_sf_addname_hard( > int objchange, /* changing inode number size */ > int new_isize) /* new directory size */ > { > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > int add_datasize; /* data size need for new ent */ > char *buf; /* buffer for old */ > - xfs_inode_t *dp; /* incore directory inode */ > int eof; /* reached end of old dir */ > int nbytes; /* temp for byte copies */ > xfs_dir2_data_aoff_t new_offset; /* next offset value */ > @@ -432,8 +458,6 @@ xfs_dir2_sf_addname_hard( > /* > * Copy the old directory to the stack buffer. > */ > - dp = args->dp; > - > sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; > old_isize = (int)dp->i_d.di_size; > buf = kmem_alloc(old_isize, 0); > @@ -450,7 +474,7 @@ xfs_dir2_sf_addname_hard( > eof = (char *)oldsfep == &buf[old_isize]; > !eof; > offset = new_offset + dp->d_ops->data_entsize(oldsfep->namelen), > - oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep), > + oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep), > eof = (char *)oldsfep == &buf[old_isize]) { > new_offset = xfs_dir2_sf_get_offset(oldsfep); > if (offset + add_datasize <= new_offset) > @@ -488,7 +512,7 @@ xfs_dir2_sf_addname_hard( > * If there's more left to copy, do that. > */ > if (!eof) { > - sfep = dp->d_ops->sf_nextentry(sfp, sfep); > + sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > memcpy(sfep, oldsfep, old_isize - nbytes); > } > kmem_free(buf); > @@ -510,7 +534,8 @@ xfs_dir2_sf_addname_pick( > xfs_dir2_sf_entry_t **sfepp, /* out(1): new entry ptr */ > xfs_dir2_data_aoff_t *offsetp) /* out(1): new offset */ > { > - xfs_inode_t *dp; /* incore directory inode */ > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > int holefit; /* found hole it will fit in */ > int i; /* entry number */ > xfs_dir2_data_aoff_t offset; /* data block offset */ > @@ -519,8 +544,6 @@ xfs_dir2_sf_addname_pick( > int size; /* entry's data size */ > int used; /* data bytes used */ > > - dp = args->dp; > - > sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data; > size = dp->d_ops->data_entsize(args->namelen); > offset = dp->d_ops->data_first_offset; > @@ -536,7 +559,7 @@ xfs_dir2_sf_addname_pick( > holefit = offset + size <= xfs_dir2_sf_get_offset(sfep); > offset = xfs_dir2_sf_get_offset(sfep) + > dp->d_ops->data_entsize(sfep->namelen); > - sfep = dp->d_ops->sf_nextentry(sfp, sfep); > + sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > } > /* > * Calculate data bytes used excluding the new entry, if this > @@ -595,7 +618,7 @@ xfs_dir2_sf_check( > > for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); > i < sfp->count; > - i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { > + i++, sfep = xfs_dir2_sf_nextentry(dp->i_mount, sfp, sfep)) { > ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset); > ino = dp->d_ops->sf_get_ino(sfp, sfep); > i8count += ino > XFS_DIR2_MAX_SHORT_INUM; > @@ -680,7 +703,7 @@ xfs_dir2_sf_verify( > * within the data buffer. The next entry starts after the > * name component, so nextentry is an acceptable test. > */ > - next_sfep = dops->sf_nextentry(sfp, sfep); > + next_sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > if (endp < (char *)next_sfep) > return __this_address; > > @@ -779,7 +802,8 @@ int /* error */ > xfs_dir2_sf_lookup( > xfs_da_args_t *args) /* operation arguments */ > { > - xfs_inode_t *dp; /* incore directory inode */ > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > int i; /* entry index */ > int error; > xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ > @@ -790,7 +814,6 @@ xfs_dir2_sf_lookup( > trace_xfs_dir2_sf_lookup(args); > > xfs_dir2_sf_check(args); > - dp = args->dp; > > ASSERT(dp->i_df.if_flags & XFS_IFINLINE); > /* > @@ -828,7 +851,7 @@ xfs_dir2_sf_lookup( > */ > ci_sfep = NULL; > for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; > - i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { > + i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { > /* > * Compare name and if it's an exact match, return the inode > * number. If it's the first case-insensitive match, store the > @@ -864,8 +887,9 @@ int /* error */ > xfs_dir2_sf_removename( > xfs_da_args_t *args) > { > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > int byteoff; /* offset of removed entry */ > - xfs_inode_t *dp; /* incore directory inode */ > int entsize; /* this entry's size */ > int i; /* shortform entry index */ > int newsize; /* new inode size */ > @@ -875,8 +899,6 @@ xfs_dir2_sf_removename( > > trace_xfs_dir2_sf_removename(args); > > - dp = args->dp; > - > ASSERT(dp->i_df.if_flags & XFS_IFINLINE); > oldsize = (int)dp->i_d.di_size; > /* > @@ -895,7 +917,7 @@ xfs_dir2_sf_removename( > * Find the one we're deleting. > */ > for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; > - i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { > + i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { > if (xfs_da_compname(args, sfep->name, sfep->namelen) == > XFS_CMP_EXACT) { > ASSERT(dp->d_ops->sf_get_ino(sfp, sfep) == > @@ -912,7 +934,7 @@ xfs_dir2_sf_removename( > * Calculate sizes. > */ > byteoff = (int)((char *)sfep - (char *)sfp); > - entsize = dp->d_ops->sf_entsize(sfp, args->namelen); > + entsize = xfs_dir2_sf_entsize(mp, sfp, args->namelen); > newsize = oldsize - entsize; > /* > * Copy the part if any after the removed entry, sliding it down. > @@ -951,7 +973,8 @@ int /* error */ > xfs_dir2_sf_replace( > xfs_da_args_t *args) /* operation arguments */ > { > - xfs_inode_t *dp; /* incore directory inode */ > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > int i; /* entry index */ > xfs_ino_t ino=0; /* entry old inode number */ > int i8elevated; /* sf_toino8 set i8count=1 */ > @@ -960,14 +983,12 @@ xfs_dir2_sf_replace( > > trace_xfs_dir2_sf_replace(args); > > - dp = args->dp; > - > ASSERT(dp->i_df.if_flags & XFS_IFINLINE); > /* > * Bail out if the shortform directory is way too small. > */ > if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) { > - ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount)); > + ASSERT(XFS_FORCED_SHUTDOWN(mp)); > return -EIO; > } > ASSERT(dp->i_df.if_bytes == dp->i_d.di_size); > @@ -1017,7 +1038,7 @@ xfs_dir2_sf_replace( > */ > else { > for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count; > - i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) { > + i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep)) { > if (xfs_da_compname(args, sfep->name, sfep->namelen) == > XFS_CMP_EXACT) { > ino = dp->d_ops->sf_get_ino(sfp, sfep); > @@ -1076,8 +1097,9 @@ static void > xfs_dir2_sf_toino4( > xfs_da_args_t *args) /* operation arguments */ > { > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > char *buf; /* old dir's buffer */ > - xfs_inode_t *dp; /* incore directory inode */ > int i; /* entry index */ > int newsize; /* new inode size */ > xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ > @@ -1088,8 +1110,6 @@ xfs_dir2_sf_toino4( > > trace_xfs_dir2_sf_toino4(args); > > - dp = args->dp; > - > /* > * Copy the old directory to the buffer. > * Then nuke it from the inode, and add the new buffer to the inode. > @@ -1123,8 +1143,8 @@ xfs_dir2_sf_toino4( > for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), > oldsfep = xfs_dir2_sf_firstentry(oldsfp); > i < sfp->count; > - i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep), > - oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep)) { > + i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep), > + oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep)) { > sfep->namelen = oldsfep->namelen; > memcpy(sfep->offset, oldsfep->offset, sizeof(sfep->offset)); > memcpy(sfep->name, oldsfep->name, sfep->namelen); > @@ -1149,8 +1169,9 @@ static void > xfs_dir2_sf_toino8( > xfs_da_args_t *args) /* operation arguments */ > { > + struct xfs_inode *dp = args->dp; > + struct xfs_mount *mp = dp->i_mount; > char *buf; /* old dir's buffer */ > - xfs_inode_t *dp; /* incore directory inode */ > int i; /* entry index */ > int newsize; /* new inode size */ > xfs_dir2_sf_entry_t *oldsfep; /* old sf entry */ > @@ -1161,8 +1182,6 @@ xfs_dir2_sf_toino8( > > trace_xfs_dir2_sf_toino8(args); > > - dp = args->dp; > - > /* > * Copy the old directory to the buffer. > * Then nuke it from the inode, and add the new buffer to the inode. > @@ -1196,8 +1215,8 @@ xfs_dir2_sf_toino8( > for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp), > oldsfep = xfs_dir2_sf_firstentry(oldsfp); > i < sfp->count; > - i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep), > - oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep)) { > + i++, sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep), > + oldsfep = xfs_dir2_sf_nextentry(mp, oldsfp, oldsfep)) { > sfep->namelen = oldsfep->namelen; > memcpy(sfep->offset, oldsfep->offset, sizeof(sfep->offset)); > memcpy(sfep->name, oldsfep->name, sfep->namelen); > diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c > index 6f94d2a45174..7d150e914d00 100644 > --- a/fs/xfs/xfs_dir2_readdir.c > +++ b/fs/xfs/xfs_dir2_readdir.c > @@ -48,6 +48,7 @@ xfs_dir2_sf_getdents( > { > int i; /* shortform entry number */ > struct xfs_inode *dp = args->dp; /* incore directory inode */ > + struct xfs_mount *mp = dp->i_mount; > xfs_dir2_dataptr_t off; /* current entry's offset */ > xfs_dir2_sf_entry_t *sfep; /* shortform directory entry */ > xfs_dir2_sf_hdr_t *sfp; /* shortform structure */ > @@ -109,7 +110,7 @@ xfs_dir2_sf_getdents( > xfs_dir2_sf_get_offset(sfep)); > > if (ctx->pos > off) { > - sfep = dp->d_ops->sf_nextentry(sfp, sfep); > + sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > continue; > } > > @@ -122,9 +123,9 @@ xfs_dir2_sf_getdents( > return -EFSCORRUPTED; > } > if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino, > - xfs_dir3_get_dtype(dp->i_mount, filetype))) > + xfs_dir3_get_dtype(mp, filetype))) > return 0; > - sfep = dp->d_ops->sf_nextentry(sfp, sfep); > + sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep); > } > > ctx->pos = xfs_dir2_db_off_to_dataptr(geo, geo->datablk + 1, 0) & > -- > 2.20.1 >