From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/fs/xfs/libxfs/xfs_dir2_sf.c | 446 ++++++++++++++++++++++++++++++++----------------------
1 files changed, 263 insertions(+), 183 deletions(-)
diff --git a/kernel/fs/xfs/libxfs/xfs_dir2_sf.c b/kernel/fs/xfs/libxfs/xfs_dir2_sf.c
index 585dfdb..8c4f76b 100644
--- a/kernel/fs/xfs/libxfs/xfs_dir2_sf.c
+++ b/kernel/fs/xfs/libxfs/xfs_dir2_sf.c
@@ -5,16 +5,13 @@
*/
#include "xfs.h"
#include "xfs_fs.h"
+#include "xfs_shared.h"
#include "xfs_format.h"
#include "xfs_log_format.h"
#include "xfs_trans_resv.h"
#include "xfs_mount.h"
-#include "xfs_da_format.h"
-#include "xfs_da_btree.h"
#include "xfs_inode.h"
#include "xfs_trans.h"
-#include "xfs_inode_item.h"
-#include "xfs_error.h"
#include "xfs_dir2.h"
#include "xfs_dir2_priv.h"
#include "xfs_trace.h"
@@ -39,6 +36,126 @@
static void xfs_dir2_sf_toino4(xfs_da_args_t *args);
static void xfs_dir2_sf_toino8(xfs_da_args_t *args);
+
+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 (void *)sfep + xfs_dir2_sf_entsize(mp, hdr, sfep->namelen);
+}
+
+/*
+ * In short-form directory entries the inode numbers are stored at variable
+ * offset behind the entry name. If the entry stores a filetype value, then it
+ * sits between the name and the inode number. The actual inode numbers can
+ * come in two formats as well, either 4 bytes or 8 bytes wide.
+ */
+xfs_ino_t
+xfs_dir2_sf_get_ino(
+ struct xfs_mount *mp,
+ struct xfs_dir2_sf_hdr *hdr,
+ struct xfs_dir2_sf_entry *sfep)
+{
+ uint8_t *from = sfep->name + sfep->namelen;
+
+ if (xfs_sb_version_hasftype(&mp->m_sb))
+ from++;
+
+ if (!hdr->i8count)
+ return get_unaligned_be32(from);
+ return get_unaligned_be64(from) & XFS_MAXINUMBER;
+}
+
+void
+xfs_dir2_sf_put_ino(
+ struct xfs_mount *mp,
+ struct xfs_dir2_sf_hdr *hdr,
+ struct xfs_dir2_sf_entry *sfep,
+ xfs_ino_t ino)
+{
+ uint8_t *to = sfep->name + sfep->namelen;
+
+ ASSERT(ino <= XFS_MAXINUMBER);
+
+ if (xfs_sb_version_hasftype(&mp->m_sb))
+ to++;
+
+ if (hdr->i8count)
+ put_unaligned_be64(ino, to);
+ else
+ put_unaligned_be32(ino, to);
+}
+
+xfs_ino_t
+xfs_dir2_sf_get_parent_ino(
+ struct xfs_dir2_sf_hdr *hdr)
+{
+ if (!hdr->i8count)
+ return get_unaligned_be32(hdr->parent);
+ return get_unaligned_be64(hdr->parent) & XFS_MAXINUMBER;
+}
+
+void
+xfs_dir2_sf_put_parent_ino(
+ struct xfs_dir2_sf_hdr *hdr,
+ xfs_ino_t ino)
+{
+ ASSERT(ino <= XFS_MAXINUMBER);
+
+ if (hdr->i8count)
+ put_unaligned_be64(ino, hdr->parent);
+ else
+ put_unaligned_be32(ino, hdr->parent);
+}
+
+/*
+ * The file type field is stored at the end of the name for filetype enabled
+ * shortform directories, or not at all otherwise.
+ */
+uint8_t
+xfs_dir2_sf_get_ftype(
+ struct xfs_mount *mp,
+ struct xfs_dir2_sf_entry *sfep)
+{
+ if (xfs_sb_version_hasftype(&mp->m_sb)) {
+ uint8_t ftype = sfep->name[sfep->namelen];
+
+ if (ftype < XFS_DIR3_FT_MAX)
+ return ftype;
+ }
+
+ return XFS_DIR3_FT_UNKNOWN;
+}
+
+void
+xfs_dir2_sf_put_ftype(
+ struct xfs_mount *mp,
+ struct xfs_dir2_sf_entry *sfep,
+ uint8_t ftype)
+{
+ ASSERT(ftype < XFS_DIR3_FT_MAX);
+
+ if (xfs_sb_version_hasftype(&mp->m_sb))
+ sfep->name[sfep->namelen] = ftype;
+}
/*
* Given a block directory (dp/block), calculate its size as a shortform (sf)
@@ -128,7 +245,7 @@
*/
sfhp->count = count;
sfhp->i8count = i8count;
- dp->d_ops->sf_put_parent_ino(sfhp, parent);
+ xfs_dir2_sf_put_parent_ino(sfhp, parent);
return size;
}
@@ -138,64 +255,48 @@
*/
int /* error */
xfs_dir2_block_to_sf(
- xfs_da_args_t *args, /* operation arguments */
+ struct xfs_da_args *args, /* operation arguments */
struct xfs_buf *bp,
int size, /* shortform directory size */
- xfs_dir2_sf_hdr_t *sfhp) /* shortform directory hdr */
+ struct xfs_dir2_sf_hdr *sfhp) /* shortform directory hdr */
{
- xfs_dir2_data_hdr_t *hdr; /* block header */
- xfs_dir2_data_entry_t *dep; /* data entry pointer */
- xfs_inode_t *dp; /* incore directory inode */
- xfs_dir2_data_unused_t *dup; /* unused data pointer */
- char *endptr; /* end of data entries */
+ struct xfs_inode *dp = args->dp;
+ struct xfs_mount *mp = dp->i_mount;
int error; /* error return value */
int logflags; /* inode logging flags */
- xfs_mount_t *mp; /* filesystem mount point */
- char *ptr; /* current data pointer */
- xfs_dir2_sf_entry_t *sfep; /* shortform entry */
- xfs_dir2_sf_hdr_t *sfp; /* shortform directory header */
- xfs_dir2_sf_hdr_t *dst; /* temporary data buffer */
+ struct xfs_dir2_sf_entry *sfep; /* shortform entry */
+ struct xfs_dir2_sf_hdr *sfp; /* shortform directory header */
+ unsigned int offset = args->geo->data_entry_offset;
+ unsigned int end;
trace_xfs_dir2_block_to_sf(args);
- dp = args->dp;
- mp = dp->i_mount;
-
/*
- * allocate a temporary destination buffer the size of the inode
- * to format the data into. Once we have formatted the data, we
- * can free the block and copy the formatted data into the inode literal
- * area.
+ * Allocate a temporary destination buffer the size of the inode to
+ * format the data into. Once we have formatted the data, we can free
+ * the block and copy the formatted data into the inode literal area.
*/
- dst = kmem_alloc(mp->m_sb.sb_inodesize, KM_SLEEP);
- hdr = bp->b_addr;
-
- /*
- * Copy the header into the newly allocate local space.
- */
- sfp = (xfs_dir2_sf_hdr_t *)dst;
+ sfp = kmem_alloc(mp->m_sb.sb_inodesize, 0);
memcpy(sfp, sfhp, xfs_dir2_sf_hdr_size(sfhp->i8count));
/*
- * Set up to loop over the block's entries.
+ * Loop over the active and unused entries. Stop when we reach the
+ * leaf/tail portion of the block.
*/
- ptr = (char *)dp->d_ops->data_entry_p(hdr);
- endptr = xfs_dir3_data_endp(args->geo, hdr);
+ end = xfs_dir3_data_end_offset(args->geo, bp->b_addr);
sfep = xfs_dir2_sf_firstentry(sfp);
- /*
- * Loop over the active and unused entries.
- * Stop when we reach the leaf/tail portion of the block.
- */
- while (ptr < endptr) {
+ while (offset < end) {
+ struct xfs_dir2_data_unused *dup = bp->b_addr + offset;
+ struct xfs_dir2_data_entry *dep = bp->b_addr + offset;
+
/*
* If it's unused, just skip over it.
*/
- dup = (xfs_dir2_data_unused_t *)ptr;
if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
- ptr += be16_to_cpu(dup->length);
+ offset += be16_to_cpu(dup->length);
continue;
}
- dep = (xfs_dir2_data_entry_t *)ptr;
+
/*
* Skip .
*/
@@ -207,24 +308,22 @@
else if (dep->namelen == 2 &&
dep->name[0] == '.' && dep->name[1] == '.')
ASSERT(be64_to_cpu(dep->inumber) ==
- dp->d_ops->sf_get_parent_ino(sfp));
+ xfs_dir2_sf_get_parent_ino(sfp));
/*
* Normal entry, copy it into shortform.
*/
else {
sfep->namelen = dep->namelen;
- xfs_dir2_sf_put_offset(sfep,
- (xfs_dir2_data_aoff_t)
- ((char *)dep - (char *)hdr));
+ xfs_dir2_sf_put_offset(sfep, offset);
memcpy(sfep->name, dep->name, dep->namelen);
- dp->d_ops->sf_put_ino(sfp, sfep,
+ xfs_dir2_sf_put_ino(mp, sfp, sfep,
be64_to_cpu(dep->inumber));
- dp->d_ops->sf_put_ftype(sfep,
- dp->d_ops->data_get_ftype(dep));
+ xfs_dir2_sf_put_ftype(mp, sfep,
+ xfs_dir2_data_get_ftype(mp, 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);
+ offset += xfs_dir2_data_entsize(mp, dep->namelen);
}
ASSERT((char *)sfep - (char *)sfp == size);
@@ -243,15 +342,15 @@
* Convert the inode to local format and copy the data in.
*/
ASSERT(dp->i_df.if_bytes == 0);
- xfs_init_local_fork(dp, XFS_DATA_FORK, dst, size);
- dp->i_d.di_format = XFS_DINODE_FMT_LOCAL;
+ xfs_init_local_fork(dp, XFS_DATA_FORK, sfp, size);
+ dp->i_df.if_format = XFS_DINODE_FMT_LOCAL;
dp->i_d.di_size = size;
logflags |= XFS_ILOG_DDATA;
xfs_dir2_sf_check(args);
out:
xfs_trans_log_inode(args->trans, dp, logflags);
- kmem_free(dst);
+ kmem_free(sfp);
return error;
}
@@ -280,13 +379,7 @@
ASSERT(xfs_dir2_sf_lookup(args) == -ENOENT);
dp = args->dp;
ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
- /*
- * Make sure the shortform value has some of its header.
- */
- if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
- ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
- return -EIO;
- }
+ ASSERT(dp->i_d.di_size >= offsetof(struct xfs_dir2_sf_hdr, parent));
ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
ASSERT(dp->i_df.if_u1.if_data != NULL);
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
@@ -294,7 +387,7 @@
/*
* 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;
/*
@@ -367,18 +460,17 @@
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.
@@ -391,8 +483,8 @@
sfep->namelen = args->namelen;
xfs_dir2_sf_put_offset(sfep, offset);
memcpy(sfep->name, args->name, sfep->namelen);
- dp->d_ops->sf_put_ino(sfp, sfep, args->inumber);
- dp->d_ops->sf_put_ftype(sfep, args->filetype);
+ xfs_dir2_sf_put_ino(mp, sfp, sfep, args->inumber);
+ xfs_dir2_sf_put_ftype(mp, sfep, args->filetype);
/*
* Update the header and inode.
@@ -419,9 +511,10 @@
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 */
@@ -435,11 +528,9 @@
/*
* 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, KM_SLEEP);
+ buf = kmem_alloc(old_isize, 0);
oldsfp = (xfs_dir2_sf_hdr_t *)buf;
memcpy(oldsfp, sfp, old_isize);
/*
@@ -447,13 +538,13 @@
* to insert the new entry.
* If it's going to end up at the end then oldsfep will point there.
*/
- for (offset = dp->d_ops->data_first_offset,
+ for (offset = args->geo->data_first_offset,
oldsfep = xfs_dir2_sf_firstentry(oldsfp),
- add_datasize = dp->d_ops->data_entsize(args->namelen),
+ add_datasize = xfs_dir2_data_entsize(mp, args->namelen),
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),
+ offset = new_offset + xfs_dir2_data_entsize(mp, oldsfep->namelen),
+ 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)
@@ -482,8 +573,8 @@
sfep->namelen = args->namelen;
xfs_dir2_sf_put_offset(sfep, offset);
memcpy(sfep->name, args->name, sfep->namelen);
- dp->d_ops->sf_put_ino(sfp, sfep, args->inumber);
- dp->d_ops->sf_put_ftype(sfep, args->filetype);
+ xfs_dir2_sf_put_ino(mp, sfp, sfep, args->inumber);
+ xfs_dir2_sf_put_ftype(mp, sfep, args->filetype);
sfp->count++;
if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange)
sfp->i8count++;
@@ -491,7 +582,7 @@
* 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);
@@ -513,7 +604,8 @@
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 */
@@ -522,11 +614,9 @@
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;
+ size = xfs_dir2_data_entsize(mp, args->namelen);
+ offset = args->geo->data_first_offset;
sfep = xfs_dir2_sf_firstentry(sfp);
holefit = 0;
/*
@@ -538,8 +628,8 @@
if (!holefit)
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);
+ xfs_dir2_data_entsize(mp, sfep->namelen);
+ sfep = xfs_dir2_sf_nextentry(mp, sfp, sfep);
}
/*
* Calculate data bytes used excluding the new entry, if this
@@ -581,7 +671,8 @@
xfs_dir2_sf_check(
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 number */
int i8count; /* number of big inode#s */
xfs_ino_t ino; /* entry inode number */
@@ -589,23 +680,21 @@
xfs_dir2_sf_entry_t *sfep; /* shortform dir entry */
xfs_dir2_sf_hdr_t *sfp; /* shortform structure */
- dp = args->dp;
-
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
- offset = dp->d_ops->data_first_offset;
- ino = dp->d_ops->sf_get_parent_ino(sfp);
+ offset = args->geo->data_first_offset;
+ ino = xfs_dir2_sf_get_parent_ino(sfp);
i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
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)) {
ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset);
- ino = dp->d_ops->sf_get_ino(sfp, sfep);
+ ino = xfs_dir2_sf_get_ino(mp, sfp, sfep);
i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
offset =
xfs_dir2_sf_get_offset(sfep) +
- dp->d_ops->data_entsize(sfep->namelen);
- ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX);
+ xfs_dir2_data_entsize(mp, sfep->namelen);
+ ASSERT(xfs_dir2_sf_get_ftype(mp, sfep) < XFS_DIR3_FT_MAX);
}
ASSERT(i8count == sfp->i8count);
ASSERT((char *)sfep - (char *)sfp == dp->i_d.di_size);
@@ -621,28 +710,21 @@
struct xfs_inode *ip)
{
struct xfs_mount *mp = ip->i_mount;
+ struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
struct xfs_dir2_sf_hdr *sfp;
struct xfs_dir2_sf_entry *sfep;
struct xfs_dir2_sf_entry *next_sfep;
char *endp;
- const struct xfs_dir_ops *dops;
- struct xfs_ifork *ifp;
xfs_ino_t ino;
int i;
int i8count;
int offset;
- int size;
+ int64_t size;
int error;
uint8_t filetype;
- ASSERT(ip->i_d.di_format == XFS_DINODE_FMT_LOCAL);
- /*
- * xfs_iread calls us before xfs_setup_inode sets up ip->d_ops,
- * so we can only trust the mountpoint to have the right pointer.
- */
- dops = xfs_dir_get_ops(mp, NULL);
+ ASSERT(ifp->if_format == XFS_DINODE_FMT_LOCAL);
- ifp = XFS_IFORK_PTR(ip, XFS_DATA_FORK);
sfp = (struct xfs_dir2_sf_hdr *)ifp->if_u1.if_data;
size = ifp->if_bytes;
@@ -656,12 +738,12 @@
endp = (char *)sfp + size;
/* Check .. entry */
- ino = dops->sf_get_parent_ino(sfp);
+ ino = xfs_dir2_sf_get_parent_ino(sfp);
i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
error = xfs_dir_ino_validate(mp, ino);
if (error)
return __this_address;
- offset = dops->data_first_offset;
+ offset = mp->m_dir_geo->data_first_offset;
/* Check all reported entries */
sfep = xfs_dir2_sf_firstentry(sfp);
@@ -683,7 +765,7 @@
* 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;
@@ -692,19 +774,19 @@
return __this_address;
/* Check the inode number. */
- ino = dops->sf_get_ino(sfp, sfep);
+ ino = xfs_dir2_sf_get_ino(mp, sfp, sfep);
i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
error = xfs_dir_ino_validate(mp, ino);
if (error)
return __this_address;
/* Check the file type. */
- filetype = dops->sf_get_ftype(sfep);
+ filetype = xfs_dir2_sf_get_ftype(mp, sfep);
if (filetype >= XFS_DIR3_FT_MAX)
return __this_address;
offset = xfs_dir2_sf_get_offset(sfep) +
- dops->data_entsize(sfep->namelen);
+ xfs_dir2_data_entsize(mp, sfep->namelen);
sfep = next_sfep;
}
@@ -744,9 +826,9 @@
* If it's currently a zero-length extent file,
* convert it to local format.
*/
- if (dp->i_d.di_format == XFS_DINODE_FMT_EXTENTS) {
+ if (dp->i_df.if_format == XFS_DINODE_FMT_EXTENTS) {
dp->i_df.if_flags &= ~XFS_IFEXTENTS; /* just in case */
- dp->i_d.di_format = XFS_DINODE_FMT_LOCAL;
+ dp->i_df.if_format = XFS_DINODE_FMT_LOCAL;
xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE);
dp->i_df.if_flags |= XFS_IFINLINE;
}
@@ -766,7 +848,7 @@
/*
* Now can put in the inode number, since i8count is set.
*/
- dp->d_ops->sf_put_parent_ino(sfp, pino);
+ xfs_dir2_sf_put_parent_ino(sfp, pino);
sfp->count = 0;
dp->i_d.di_size = size;
xfs_dir2_sf_check(args);
@@ -782,7 +864,8 @@
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 */
@@ -793,16 +876,9 @@
trace_xfs_dir2_sf_lookup(args);
xfs_dir2_sf_check(args);
- dp = args->dp;
ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
- /*
- * Bail out if the directory is way too short.
- */
- if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
- ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
- return -EIO;
- }
+ ASSERT(dp->i_d.di_size >= offsetof(struct xfs_dir2_sf_hdr, parent));
ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
ASSERT(dp->i_df.if_u1.if_data != NULL);
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
@@ -821,7 +897,7 @@
*/
if (args->namelen == 2 &&
args->name[0] == '.' && args->name[1] == '.') {
- args->inumber = dp->d_ops->sf_get_parent_ino(sfp);
+ args->inumber = xfs_dir2_sf_get_parent_ino(sfp);
args->cmpresult = XFS_CMP_EXACT;
args->filetype = XFS_DIR3_FT_DIR;
return -EEXIST;
@@ -831,18 +907,17 @@
*/
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
* inode number and continue looking for an exact match.
*/
- cmp = dp->i_mount->m_dirnameops->compname(args, sfep->name,
- sfep->namelen);
+ cmp = xfs_dir2_compname(args, sfep->name, sfep->namelen);
if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
args->cmpresult = cmp;
- args->inumber = dp->d_ops->sf_get_ino(sfp, sfep);
- args->filetype = dp->d_ops->sf_get_ftype(sfep);
+ args->inumber = xfs_dir2_sf_get_ino(mp, sfp, sfep);
+ args->filetype = xfs_dir2_sf_get_ftype(mp, sfep);
if (cmp == XFS_CMP_EXACT)
return -EEXIST;
ci_sfep = sfep;
@@ -867,8 +942,9 @@
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 */
@@ -878,17 +954,9 @@
trace_xfs_dir2_sf_removename(args);
- dp = args->dp;
-
ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
oldsize = (int)dp->i_d.di_size;
- /*
- * Bail out if the directory is way too short.
- */
- if (oldsize < offsetof(xfs_dir2_sf_hdr_t, parent)) {
- ASSERT(XFS_FORCED_SHUTDOWN(dp->i_mount));
- return -EIO;
- }
+ ASSERT(oldsize >= offsetof(struct xfs_dir2_sf_hdr, parent));
ASSERT(dp->i_df.if_bytes == oldsize);
ASSERT(dp->i_df.if_u1.if_data != NULL);
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
@@ -898,10 +966,10 @@
* 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) ==
+ ASSERT(xfs_dir2_sf_get_ino(mp, sfp, sfep) ==
args->inumber);
break;
}
@@ -915,7 +983,7 @@
* 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.
@@ -948,13 +1016,35 @@
}
/*
+ * Check whether the sf dir replace operation need more blocks.
+ */
+static bool
+xfs_dir2_sf_replace_needblock(
+ struct xfs_inode *dp,
+ xfs_ino_t inum)
+{
+ int newsize;
+ struct xfs_dir2_sf_hdr *sfp;
+
+ if (dp->i_df.if_format != XFS_DINODE_FMT_LOCAL)
+ return false;
+
+ sfp = (struct xfs_dir2_sf_hdr *)dp->i_df.if_u1.if_data;
+ newsize = dp->i_df.if_bytes + (sfp->count + 1) * XFS_INO64_DIFF;
+
+ return inum > XFS_DIR2_MAX_SHORT_INUM &&
+ sfp->i8count == 0 && newsize > XFS_IFORK_DSIZE(dp);
+}
+
+/*
* Replace the inode number of an entry in a shortform directory.
*/
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 */
@@ -963,16 +1053,8 @@
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));
- return -EIO;
- }
+ ASSERT(dp->i_d.di_size >= offsetof(struct xfs_dir2_sf_hdr, parent));
ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
ASSERT(dp->i_df.if_u1.if_data != NULL);
sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
@@ -983,17 +1065,14 @@
*/
if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && sfp->i8count == 0) {
int error; /* error return value */
- int newsize; /* new inode size */
- newsize = dp->i_df.if_bytes + (sfp->count + 1) * XFS_INO64_DIFF;
/*
* Won't fit as shortform, convert to block then do replace.
*/
- if (newsize > XFS_IFORK_DSIZE(dp)) {
+ if (xfs_dir2_sf_replace_needblock(dp, args->inumber)) {
error = xfs_dir2_sf_to_block(args);
- if (error) {
+ if (error)
return error;
- }
return xfs_dir2_block_replace(args);
}
/*
@@ -1011,22 +1090,23 @@
*/
if (args->namelen == 2 &&
args->name[0] == '.' && args->name[1] == '.') {
- ino = dp->d_ops->sf_get_parent_ino(sfp);
+ ino = xfs_dir2_sf_get_parent_ino(sfp);
ASSERT(args->inumber != ino);
- dp->d_ops->sf_put_parent_ino(sfp, args->inumber);
+ xfs_dir2_sf_put_parent_ino(sfp, args->inumber);
}
/*
* Normal entry, look for the name.
*/
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);
+ ino = xfs_dir2_sf_get_ino(mp, sfp, sfep);
ASSERT(args->inumber != ino);
- dp->d_ops->sf_put_ino(sfp, sfep, args->inumber);
- dp->d_ops->sf_put_ftype(sfep, args->filetype);
+ xfs_dir2_sf_put_ino(mp, sfp, sfep,
+ args->inumber);
+ xfs_dir2_sf_put_ftype(mp, sfep, args->filetype);
break;
}
}
@@ -1079,8 +1159,9 @@
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 */
@@ -1091,15 +1172,13 @@
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.
* Don't want xfs_idata_realloc copying the data here.
*/
oldsize = dp->i_df.if_bytes;
- buf = kmem_alloc(oldsize, KM_SLEEP);
+ buf = kmem_alloc(oldsize, 0);
oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
ASSERT(oldsfp->i8count == 1);
memcpy(buf, oldsfp, oldsize);
@@ -1119,21 +1198,22 @@
*/
sfp->count = oldsfp->count;
sfp->i8count = 0;
- dp->d_ops->sf_put_parent_ino(sfp, dp->d_ops->sf_get_parent_ino(oldsfp));
+ xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp));
/*
* Copy the entries field by field.
*/
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);
- dp->d_ops->sf_put_ino(sfp, sfep,
- dp->d_ops->sf_get_ino(oldsfp, oldsfep));
- dp->d_ops->sf_put_ftype(sfep, dp->d_ops->sf_get_ftype(oldsfep));
+ xfs_dir2_sf_put_ino(mp, sfp, sfep,
+ xfs_dir2_sf_get_ino(mp, oldsfp, oldsfep));
+ xfs_dir2_sf_put_ftype(mp, sfep,
+ xfs_dir2_sf_get_ftype(mp, oldsfep));
}
/*
* Clean up the inode.
@@ -1152,8 +1232,9 @@
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 */
@@ -1164,15 +1245,13 @@
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.
* Don't want xfs_idata_realloc copying the data here.
*/
oldsize = dp->i_df.if_bytes;
- buf = kmem_alloc(oldsize, KM_SLEEP);
+ buf = kmem_alloc(oldsize, 0);
oldsfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
ASSERT(oldsfp->i8count == 0);
memcpy(buf, oldsfp, oldsize);
@@ -1192,21 +1271,22 @@
*/
sfp->count = oldsfp->count;
sfp->i8count = 1;
- dp->d_ops->sf_put_parent_ino(sfp, dp->d_ops->sf_get_parent_ino(oldsfp));
+ xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp));
/*
* Copy the entries field by field.
*/
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);
- dp->d_ops->sf_put_ino(sfp, sfep,
- dp->d_ops->sf_get_ino(oldsfp, oldsfep));
- dp->d_ops->sf_put_ftype(sfep, dp->d_ops->sf_get_ftype(oldsfep));
+ xfs_dir2_sf_put_ino(mp, sfp, sfep,
+ xfs_dir2_sf_get_ino(mp, oldsfp, oldsfep));
+ xfs_dir2_sf_put_ftype(mp, sfep,
+ xfs_dir2_sf_get_ftype(mp, oldsfep));
}
/*
* Clean up the inode.
--
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