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Message-Id: <20230216094745.47868-1-jefflexu@linux.alibaba.com>
Date: Thu, 16 Feb 2023 17:47:44 +0800
From: Jingbo Xu <jefflexu@...ux.alibaba.com>
To: xiang@...nel.or, chao@...nel.org, huyue2@...lpad.com,
linux-erofs@...ts.ozlabs.org
Cc: linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] erofs: convert hardcoded blocksize to sb->s_blocksize
As the first step of converting hardcoded blocksize to that specified in
on-disk superblock, convert all call sites of hardcoded blocksize to
sb->s_blocksize except for:
1) use sbi->blkszbits instead of sb->s_blocksize in
erofs_superblock_csum_verify() since sb->s_blocksize has not been
updated with the on-disk blocksize yet.
2) use inode->i_blkbits instead of sb->s_blocksize in erofs_bread(),
since the inode operated on may be an anonymous inode in fscache mode.
Currently the anonymous inode is allocated from an anonymous mount
maintained in erofs, while in the near future as the code evolves, we
may allocate anonymous inodes from a generic API directly and thus has
no access to the anonymous inode's i_sb. Thus we keep the block size in
inode->i_blkbits.
Be noted that this patch only gets rid of the hardcoded blocksize, in
preparation for actually setting the on-disk block size in the following
patch. The hard limit of constraining the block size to PAGE_SIZE still
exists until the next patch.
Signed-off-by: Jingbo Xu <jefflexu@...ux.alibaba.com>
---
The part for the compressed format needs extra attention from reviewers
more professional at the compressed format :)
---
fs/erofs/data.c | 48 ++++++++++++++++++++----------------
fs/erofs/decompressor.c | 6 ++---
fs/erofs/decompressor_lzma.c | 4 +--
fs/erofs/dir.c | 21 ++++++++--------
fs/erofs/fscache.c | 5 ++--
fs/erofs/inode.c | 20 ++++++++-------
fs/erofs/internal.h | 19 +++++---------
fs/erofs/namei.c | 14 +++++------
fs/erofs/super.c | 25 ++++++++++---------
fs/erofs/xattr.c | 40 ++++++++++++++----------------
fs/erofs/xattr.h | 10 ++++----
fs/erofs/zdata.c | 18 ++++++++------
fs/erofs/zmap.c | 29 +++++++++++-----------
include/trace/events/erofs.h | 4 +--
14 files changed, 134 insertions(+), 129 deletions(-)
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index 032e12dccb84..ef382e83d800 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -27,11 +27,15 @@ void erofs_put_metabuf(struct erofs_buf *buf)
buf->page = NULL;
}
+/*
+ * Derive the block size from inode->i_blkbits to make compatible with
+ * anonymous inode in fscache mode.
+ */
void *erofs_bread(struct erofs_buf *buf, struct inode *inode,
erofs_blk_t blkaddr, enum erofs_kmap_type type)
{
+ erofs_off_t offset = blkaddr << inode->i_blkbits;
struct address_space *const mapping = inode->i_mapping;
- erofs_off_t offset = blknr_to_addr(blkaddr);
pgoff_t index = offset >> PAGE_SHIFT;
struct page *page = buf->page;
struct folio *folio;
@@ -79,24 +83,25 @@ static int erofs_map_blocks_flatmode(struct inode *inode,
erofs_blk_t nblocks, lastblk;
u64 offset = map->m_la;
struct erofs_inode *vi = EROFS_I(inode);
+ struct super_block *sb = inode->i_sb;
bool tailendpacking = (vi->datalayout == EROFS_INODE_FLAT_INLINE);
- nblocks = DIV_ROUND_UP(inode->i_size, EROFS_BLKSIZ);
+ nblocks = DIV_ROUND_UP(inode->i_size, sb->s_blocksize);
lastblk = nblocks - tailendpacking;
/* there is no hole in flatmode */
map->m_flags = EROFS_MAP_MAPPED;
- if (offset < blknr_to_addr(lastblk)) {
- map->m_pa = blknr_to_addr(vi->raw_blkaddr) + map->m_la;
- map->m_plen = blknr_to_addr(lastblk) - offset;
+ if (offset < erofs_pos(sb, lastblk)) {
+ map->m_pa = erofs_pos(sb, vi->raw_blkaddr) + map->m_la;
+ map->m_plen = erofs_pos(sb, lastblk) - offset;
} else if (tailendpacking) {
map->m_pa = erofs_iloc(inode) + vi->inode_isize +
- vi->xattr_isize + erofs_blkoff(offset);
+ vi->xattr_isize + erofs_blkoff(sb, offset);
map->m_plen = inode->i_size - offset;
/* inline data should be located in the same meta block */
- if (erofs_blkoff(map->m_pa) + map->m_plen > EROFS_BLKSIZ) {
- erofs_err(inode->i_sb,
+ if (erofs_blkoff(sb, map->m_pa) + map->m_plen > sb->s_blocksize) {
+ erofs_err(sb,
"inline data cross block boundary @ nid %llu",
vi->nid);
DBG_BUGON(1);
@@ -104,7 +109,7 @@ static int erofs_map_blocks_flatmode(struct inode *inode,
}
map->m_flags |= EROFS_MAP_META;
} else {
- erofs_err(inode->i_sb,
+ erofs_err(sb,
"internal error @ nid: %llu (size %llu), m_la 0x%llx",
vi->nid, inode->i_size, map->m_la);
DBG_BUGON(1);
@@ -148,29 +153,29 @@ int erofs_map_blocks(struct inode *inode, struct erofs_map_blocks *map)
pos = ALIGN(erofs_iloc(inode) + vi->inode_isize +
vi->xattr_isize, unit) + unit * chunknr;
- kaddr = erofs_read_metabuf(&buf, sb, erofs_blknr(pos), EROFS_KMAP);
+ kaddr = erofs_read_metabuf(&buf, sb, erofs_blknr(sb, pos), EROFS_KMAP);
if (IS_ERR(kaddr)) {
err = PTR_ERR(kaddr);
goto out;
}
map->m_la = chunknr << vi->chunkbits;
map->m_plen = min_t(erofs_off_t, 1UL << vi->chunkbits,
- roundup(inode->i_size - map->m_la, EROFS_BLKSIZ));
+ round_up(inode->i_size - map->m_la, sb->s_blocksize));
/* handle block map */
if (!(vi->chunkformat & EROFS_CHUNK_FORMAT_INDEXES)) {
- __le32 *blkaddr = kaddr + erofs_blkoff(pos);
+ __le32 *blkaddr = kaddr + erofs_blkoff(sb, pos);
if (le32_to_cpu(*blkaddr) == EROFS_NULL_ADDR) {
map->m_flags = 0;
} else {
- map->m_pa = blknr_to_addr(le32_to_cpu(*blkaddr));
+ map->m_pa = erofs_pos(sb, le32_to_cpu(*blkaddr));
map->m_flags = EROFS_MAP_MAPPED;
}
goto out_unlock;
}
/* parse chunk indexes */
- idx = kaddr + erofs_blkoff(pos);
+ idx = kaddr + erofs_blkoff(sb, pos);
switch (le32_to_cpu(idx->blkaddr)) {
case EROFS_NULL_ADDR:
map->m_flags = 0;
@@ -178,7 +183,7 @@ int erofs_map_blocks(struct inode *inode, struct erofs_map_blocks *map)
default:
map->m_deviceid = le16_to_cpu(idx->device_id) &
EROFS_SB(sb)->device_id_mask;
- map->m_pa = blknr_to_addr(le32_to_cpu(idx->blkaddr));
+ map->m_pa = erofs_pos(sb, le32_to_cpu(idx->blkaddr));
map->m_flags = EROFS_MAP_MAPPED;
break;
}
@@ -222,8 +227,8 @@ int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *map)
if (!dif->mapped_blkaddr)
continue;
- startoff = blknr_to_addr(dif->mapped_blkaddr);
- length = blknr_to_addr(dif->blocks);
+ startoff = erofs_pos(sb, dif->mapped_blkaddr);
+ length = erofs_pos(sb, dif->blocks);
if (map->m_pa >= startoff &&
map->m_pa < startoff + length) {
@@ -244,6 +249,7 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
unsigned int flags, struct iomap *iomap, struct iomap *srcmap)
{
int ret;
+ struct super_block *sb = inode->i_sb;
struct erofs_map_blocks map;
struct erofs_map_dev mdev;
@@ -258,7 +264,7 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
.m_deviceid = map.m_deviceid,
.m_pa = map.m_pa,
};
- ret = erofs_map_dev(inode->i_sb, &mdev);
+ ret = erofs_map_dev(sb, &mdev);
if (ret)
return ret;
@@ -284,11 +290,11 @@ static int erofs_iomap_begin(struct inode *inode, loff_t offset, loff_t length,
struct erofs_buf buf = __EROFS_BUF_INITIALIZER;
iomap->type = IOMAP_INLINE;
- ptr = erofs_read_metabuf(&buf, inode->i_sb,
- erofs_blknr(mdev.m_pa), EROFS_KMAP);
+ ptr = erofs_read_metabuf(&buf, sb,
+ erofs_blknr(sb, mdev.m_pa), EROFS_KMAP);
if (IS_ERR(ptr))
return PTR_ERR(ptr);
- iomap->inline_data = ptr + erofs_blkoff(mdev.m_pa);
+ iomap->inline_data = ptr + erofs_blkoff(sb, mdev.m_pa);
iomap->private = buf.base;
} else {
iomap->type = IOMAP_MAPPED;
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 51b7ac7166d9..21fc6897d225 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -42,7 +42,7 @@ int z_erofs_load_lz4_config(struct super_block *sb,
if (!sbi->lz4.max_pclusterblks) {
sbi->lz4.max_pclusterblks = 1; /* reserved case */
} else if (sbi->lz4.max_pclusterblks >
- Z_EROFS_PCLUSTER_MAX_SIZE / EROFS_BLKSIZ) {
+ Z_EROFS_PCLUSTER_MAX_SIZE >> sb->s_blocksize_bits) {
erofs_err(sb, "too large lz4 pclusterblks %u",
sbi->lz4.max_pclusterblks);
return -EINVAL;
@@ -221,13 +221,13 @@ static int z_erofs_lz4_decompress_mem(struct z_erofs_lz4_decompress_ctx *ctx,
support_0padding = true;
ret = z_erofs_fixup_insize(rq, headpage + rq->pageofs_in,
min_t(unsigned int, rq->inputsize,
- EROFS_BLKSIZ - rq->pageofs_in));
+ rq->sb->s_blocksize - rq->pageofs_in));
if (ret) {
kunmap_atomic(headpage);
return ret;
}
may_inplace = !((rq->pageofs_in + rq->inputsize) &
- (EROFS_BLKSIZ - 1));
+ (rq->sb->s_blocksize - 1));
}
inputmargin = rq->pageofs_in;
diff --git a/fs/erofs/decompressor_lzma.c b/fs/erofs/decompressor_lzma.c
index 091fd5adf818..d44c377c5b69 100644
--- a/fs/erofs/decompressor_lzma.c
+++ b/fs/erofs/decompressor_lzma.c
@@ -166,8 +166,8 @@ int z_erofs_lzma_decompress(struct z_erofs_decompress_req *rq,
/* 1. get the exact LZMA compressed size */
kin = kmap(*rq->in);
err = z_erofs_fixup_insize(rq, kin + rq->pageofs_in,
- min_t(unsigned int, rq->inputsize,
- EROFS_BLKSIZ - rq->pageofs_in));
+ min_t(unsigned int, rq->inputsize,
+ rq->sb->s_blocksize - rq->pageofs_in));
if (err) {
kunmap(*rq->in);
return err;
diff --git a/fs/erofs/dir.c b/fs/erofs/dir.c
index 6970b09b8307..49fc593c0fc3 100644
--- a/fs/erofs/dir.c
+++ b/fs/erofs/dir.c
@@ -50,9 +50,11 @@ static int erofs_readdir(struct file *f, struct dir_context *ctx)
{
struct inode *dir = file_inode(f);
struct erofs_buf buf = __EROFS_BUF_INITIALIZER;
+ struct super_block *sb = dir->i_sb;
+ const unsigned long bsz = sb->s_blocksize;
const size_t dirsize = i_size_read(dir);
- unsigned int i = ctx->pos / EROFS_BLKSIZ;
- unsigned int ofs = ctx->pos % EROFS_BLKSIZ;
+ unsigned int i = erofs_blknr(sb, ctx->pos);
+ unsigned int ofs = erofs_blkoff(sb, ctx->pos);
int err = 0;
bool initial = true;
@@ -62,7 +64,7 @@ static int erofs_readdir(struct file *f, struct dir_context *ctx)
de = erofs_bread(&buf, dir, i, EROFS_KMAP);
if (IS_ERR(de)) {
- erofs_err(dir->i_sb,
+ erofs_err(sb,
"fail to readdir of logical block %u of nid %llu",
i, EROFS_I(dir)->nid);
err = PTR_ERR(de);
@@ -70,24 +72,21 @@ static int erofs_readdir(struct file *f, struct dir_context *ctx)
}
nameoff = le16_to_cpu(de->nameoff);
- if (nameoff < sizeof(struct erofs_dirent) ||
- nameoff >= EROFS_BLKSIZ) {
- erofs_err(dir->i_sb,
- "invalid de[0].nameoff %u @ nid %llu",
+ if (nameoff < sizeof(struct erofs_dirent) || nameoff >= bsz) {
+ erofs_err(sb, "invalid de[0].nameoff %u @ nid %llu",
nameoff, EROFS_I(dir)->nid);
err = -EFSCORRUPTED;
break;
}
- maxsize = min_t(unsigned int,
- dirsize - ctx->pos + ofs, EROFS_BLKSIZ);
+ maxsize = min_t(unsigned int, dirsize - ctx->pos + ofs, bsz);
/* search dirents at the arbitrary position */
if (initial) {
initial = false;
ofs = roundup(ofs, sizeof(struct erofs_dirent));
- ctx->pos = blknr_to_addr(i) + ofs;
+ ctx->pos = erofs_pos(sb, i) + ofs;
if (ofs >= nameoff)
goto skip_this;
}
@@ -97,7 +96,7 @@ static int erofs_readdir(struct file *f, struct dir_context *ctx)
if (err)
break;
skip_this:
- ctx->pos = blknr_to_addr(i) + maxsize;
+ ctx->pos = erofs_pos(sb, i) + maxsize;
++i;
ofs = 0;
}
diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c
index 492c0868aa1b..53151f302b2a 100644
--- a/fs/erofs/fscache.c
+++ b/fs/erofs/fscache.c
@@ -214,8 +214,8 @@ static int erofs_fscache_data_read_slice(struct erofs_fscache_request *primary)
void *src;
/* For tail packing layout, the offset may be non-zero. */
- offset = erofs_blkoff(map.m_pa);
- blknr = erofs_blknr(map.m_pa);
+ offset = erofs_blkoff(sb, map.m_pa);
+ blknr = erofs_blknr(sb, map.m_pa);
size = map.m_llen;
src = erofs_read_metabuf(&buf, sb, blknr, EROFS_KMAP);
@@ -465,6 +465,7 @@ static struct erofs_fscache *erofs_fscache_acquire_cookie(struct super_block *sb
inode->i_size = OFFSET_MAX;
inode->i_mapping->a_ops = &erofs_fscache_meta_aops;
mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
+ inode->i_blkbits = EROFS_SB(sb)->blkszbits;
inode->i_private = ctx;
ctx->cookie = cookie;
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index d7e87d41f7bf..90bcc5bd758e 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -23,8 +23,8 @@ static void *erofs_read_inode(struct erofs_buf *buf,
unsigned int ifmt;
int err;
- blkaddr = erofs_blknr(inode_loc);
- *ofs = erofs_blkoff(inode_loc);
+ blkaddr = erofs_blknr(sb, inode_loc);
+ *ofs = erofs_blkoff(sb, inode_loc);
erofs_dbg("%s, reading inode nid %llu at %u of blkaddr %u",
__func__, vi->nid, *ofs, blkaddr);
@@ -58,11 +58,11 @@ static void *erofs_read_inode(struct erofs_buf *buf,
case EROFS_INODE_LAYOUT_EXTENDED:
vi->inode_isize = sizeof(struct erofs_inode_extended);
/* check if the extended inode acrosses block boundary */
- if (*ofs + vi->inode_isize <= EROFS_BLKSIZ) {
+ if (*ofs + vi->inode_isize <= sb->s_blocksize) {
*ofs += vi->inode_isize;
die = (struct erofs_inode_extended *)dic;
} else {
- const unsigned int gotten = EROFS_BLKSIZ - *ofs;
+ const unsigned int gotten = sb->s_blocksize - *ofs;
copied = kmalloc(vi->inode_isize, GFP_NOFS);
if (!copied) {
@@ -176,7 +176,7 @@ static void *erofs_read_inode(struct erofs_buf *buf,
err = -EOPNOTSUPP;
goto err_out;
}
- vi->chunkbits = LOG_BLOCK_SIZE +
+ vi->chunkbits = sb->s_blocksize_bits +
(vi->chunkformat & EROFS_CHUNK_FORMAT_BLKBITS_MASK);
}
inode->i_mtime.tv_sec = inode->i_ctime.tv_sec;
@@ -188,11 +188,12 @@ static void *erofs_read_inode(struct erofs_buf *buf,
if (test_opt(&sbi->opt, DAX_ALWAYS) && S_ISREG(inode->i_mode) &&
vi->datalayout == EROFS_INODE_FLAT_PLAIN)
inode->i_flags |= S_DAX;
+
if (!nblks)
/* measure inode.i_blocks as generic filesystems */
- inode->i_blocks = roundup(inode->i_size, EROFS_BLKSIZ) >> 9;
+ inode->i_blocks = round_up(inode->i_size, sb->s_blocksize) >> 9;
else
- inode->i_blocks = nblks << LOG_SECTORS_PER_BLOCK;
+ inode->i_blocks = nblks << (sb->s_blocksize_bits - 9);
return kaddr;
bogusimode:
@@ -210,11 +211,12 @@ static int erofs_fill_symlink(struct inode *inode, void *kaddr,
unsigned int m_pofs)
{
struct erofs_inode *vi = EROFS_I(inode);
+ const unsigned long bsz = inode->i_sb->s_blocksize;
char *lnk;
/* if it cannot be handled with fast symlink scheme */
if (vi->datalayout != EROFS_INODE_FLAT_INLINE ||
- inode->i_size >= EROFS_BLKSIZ || inode->i_size < 0) {
+ inode->i_size >= bsz || inode->i_size < 0) {
inode->i_op = &erofs_symlink_iops;
return 0;
}
@@ -225,7 +227,7 @@ static int erofs_fill_symlink(struct inode *inode, void *kaddr,
m_pofs += vi->xattr_isize;
/* inline symlink data shouldn't cross block boundary */
- if (m_pofs + inode->i_size > EROFS_BLKSIZ) {
+ if (m_pofs + inode->i_size > bsz) {
kfree(lnk);
erofs_err(inode->i_sb,
"inline data cross block boundary @ nid %llu",
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index 39f259acf887..8a85e7af5c92 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -147,8 +147,8 @@ struct erofs_sb_info {
#endif
u16 device_id_mask; /* valid bits of device id to be used */
- /* inode slot unit size in bit shift */
- unsigned char islotbits;
+ unsigned char islotbits; /* inode slot unit size in bit shift */
+ unsigned char blkszbits;
u32 sb_size; /* total superblock size */
u32 build_time_nsec;
@@ -242,13 +242,6 @@ static inline int erofs_wait_on_workgroup_freezed(struct erofs_workgroup *grp)
/* we strictly follow PAGE_SIZE and no buffer head yet */
#define LOG_BLOCK_SIZE PAGE_SHIFT
-
-#undef LOG_SECTORS_PER_BLOCK
-#define LOG_SECTORS_PER_BLOCK (PAGE_SHIFT - 9)
-
-#undef SECTORS_PER_BLOCK
-#define SECTORS_PER_BLOCK (1 << SECTORS_PER_BLOCK)
-
#define EROFS_BLKSIZ (1 << LOG_BLOCK_SIZE)
#if (EROFS_BLKSIZ % 4096 || !EROFS_BLKSIZ)
@@ -269,9 +262,9 @@ struct erofs_buf {
#define ROOT_NID(sb) ((sb)->root_nid)
-#define erofs_blknr(addr) ((addr) / EROFS_BLKSIZ)
-#define erofs_blkoff(addr) ((addr) % EROFS_BLKSIZ)
-#define blknr_to_addr(nr) ((erofs_off_t)(nr) * EROFS_BLKSIZ)
+#define erofs_blknr(sb, addr) ((addr) >> (sb)->s_blocksize_bits)
+#define erofs_blkoff(sb, addr) ((addr) & ((sb)->s_blocksize - 1))
+#define erofs_pos(sb, blk) ((erofs_off_t)(blk) << (sb)->s_blocksize_bits)
#define EROFS_FEATURE_FUNCS(name, compat, feature) \
static inline bool erofs_sb_has_##name(struct erofs_sb_info *sbi) \
@@ -343,7 +336,7 @@ static inline erofs_off_t erofs_iloc(struct inode *inode)
{
struct erofs_sb_info *sbi = EROFS_I_SB(inode);
- return blknr_to_addr(sbi->meta_blkaddr) +
+ return erofs_pos(inode->i_sb, sbi->meta_blkaddr) +
(EROFS_I(inode)->nid << sbi->islotbits);
}
diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
index 966eabc61c13..a5633555c669 100644
--- a/fs/erofs/namei.c
+++ b/fs/erofs/namei.c
@@ -89,7 +89,8 @@ static struct erofs_dirent *find_target_dirent(struct erofs_qstr *name,
static void *erofs_find_target_block(struct erofs_buf *target,
struct inode *dir, struct erofs_qstr *name, int *_ndirents)
{
- int head = 0, back = DIV_ROUND_UP(dir->i_size, EROFS_BLKSIZ) - 1;
+ unsigned long bsz = dir->i_sb->s_blocksize;
+ int head = 0, back = DIV_ROUND_UP(dir->i_size, bsz) - 1;
unsigned int startprfx = 0, endprfx = 0;
void *candidate = ERR_PTR(-ENOENT);
@@ -100,8 +101,7 @@ static void *erofs_find_target_block(struct erofs_buf *target,
de = erofs_bread(&buf, dir, mid, EROFS_KMAP);
if (!IS_ERR(de)) {
- const int nameoff = nameoff_from_disk(de->nameoff,
- EROFS_BLKSIZ);
+ const int nameoff = nameoff_from_disk(de->nameoff, bsz);
const int ndirents = nameoff / sizeof(*de);
int diff;
unsigned int matched;
@@ -121,11 +121,10 @@ static void *erofs_find_target_block(struct erofs_buf *target,
dname.name = (u8 *)de + nameoff;
if (ndirents == 1)
- dname.end = (u8 *)de + EROFS_BLKSIZ;
+ dname.end = (u8 *)de + bsz;
else
dname.end = (u8 *)de +
- nameoff_from_disk(de[1].nameoff,
- EROFS_BLKSIZ);
+ nameoff_from_disk(de[1].nameoff, bsz);
/* string comparison without already matched prefix */
diff = erofs_dirnamecmp(name, &dname, &matched);
@@ -178,7 +177,8 @@ int erofs_namei(struct inode *dir, const struct qstr *name, erofs_nid_t *nid,
return PTR_ERR(de);
if (ndirents)
- de = find_target_dirent(&qn, (u8 *)de, EROFS_BLKSIZ, ndirents);
+ de = find_target_dirent(&qn, (u8 *)de, dir->i_sb->s_blocksize,
+ ndirents);
if (!IS_ERR(de)) {
*nid = le64_to_cpu(de->nid);
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index 19b1ae79cec4..cd5a537969e0 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -52,18 +52,19 @@ void _erofs_info(struct super_block *sb, const char *function,
static int erofs_superblock_csum_verify(struct super_block *sb, void *sbdata)
{
+ /* use sbi->blkszbits instead since sb's blocksize is not updated yet */
+ size_t len = (1 << EROFS_SB(sb)->blkszbits) - EROFS_SUPER_OFFSET;
struct erofs_super_block *dsb;
u32 expected_crc, crc;
- dsb = kmemdup(sbdata + EROFS_SUPER_OFFSET,
- EROFS_BLKSIZ - EROFS_SUPER_OFFSET, GFP_KERNEL);
+ dsb = kmemdup(sbdata + EROFS_SUPER_OFFSET, len, GFP_KERNEL);
if (!dsb)
return -ENOMEM;
expected_crc = le32_to_cpu(dsb->checksum);
dsb->checksum = 0;
/* to allow for x86 boot sectors and other oddities. */
- crc = crc32c(~0, dsb, EROFS_BLKSIZ - EROFS_SUPER_OFFSET);
+ crc = crc32c(~0, dsb, len);
kfree(dsb);
if (crc != expected_crc) {
@@ -132,11 +133,11 @@ static void *erofs_read_metadata(struct super_block *sb, struct erofs_buf *buf,
int len, i, cnt;
*offset = round_up(*offset, 4);
- ptr = erofs_read_metabuf(buf, sb, erofs_blknr(*offset), EROFS_KMAP);
+ ptr = erofs_read_metabuf(buf, sb, erofs_blknr(sb, *offset), EROFS_KMAP);
if (IS_ERR(ptr))
return ptr;
- len = le16_to_cpu(*(__le16 *)&ptr[erofs_blkoff(*offset)]);
+ len = le16_to_cpu(*(__le16 *)&ptr[erofs_blkoff(sb, *offset)]);
if (!len)
len = U16_MAX + 1;
buffer = kmalloc(len, GFP_KERNEL);
@@ -146,14 +147,15 @@ static void *erofs_read_metadata(struct super_block *sb, struct erofs_buf *buf,
*lengthp = len;
for (i = 0; i < len; i += cnt) {
- cnt = min(EROFS_BLKSIZ - (int)erofs_blkoff(*offset), len - i);
- ptr = erofs_read_metabuf(buf, sb, erofs_blknr(*offset),
+ cnt = min_t(int, sb->s_blocksize - erofs_blkoff(sb, *offset),
+ len - i);
+ ptr = erofs_read_metabuf(buf, sb, erofs_blknr(sb, *offset),
EROFS_KMAP);
if (IS_ERR(ptr)) {
kfree(buffer);
return ptr;
}
- memcpy(buffer + i, ptr + erofs_blkoff(*offset), cnt);
+ memcpy(buffer + i, ptr + erofs_blkoff(sb, *offset), cnt);
*offset += cnt;
}
return buffer;
@@ -228,10 +230,10 @@ static int erofs_init_device(struct erofs_buf *buf, struct super_block *sb,
struct block_device *bdev;
void *ptr;
- ptr = erofs_read_metabuf(buf, sb, erofs_blknr(*pos), EROFS_KMAP);
+ ptr = erofs_read_metabuf(buf, sb, erofs_blknr(sb, *pos), EROFS_KMAP);
if (IS_ERR(ptr))
return PTR_ERR(ptr);
- dis = ptr + erofs_blkoff(*pos);
+ dis = ptr + erofs_blkoff(sb, *pos);
if (!dif->path) {
if (!dis->tag[0]) {
@@ -733,6 +735,7 @@ static int erofs_fc_fill_super(struct super_block *sb, struct fs_context *fc)
sbi->domain_id = ctx->domain_id;
ctx->domain_id = NULL;
+ sbi->blkszbits = PAGE_SHIFT;
if (erofs_is_fscache_mode(sb)) {
sb->s_blocksize = EROFS_BLKSIZ;
sb->s_blocksize_bits = LOG_BLOCK_SIZE;
@@ -1060,7 +1063,7 @@ static int erofs_statfs(struct dentry *dentry, struct kstatfs *buf)
id = huge_encode_dev(sb->s_bdev->bd_dev);
buf->f_type = sb->s_magic;
- buf->f_bsize = EROFS_BLKSIZ;
+ buf->f_bsize = sb->s_blocksize;
buf->f_blocks = sbi->total_blocks;
buf->f_bfree = buf->f_bavail = 0;
diff --git a/fs/erofs/xattr.c b/fs/erofs/xattr.c
index 60729b1220b6..459caa3cd65d 100644
--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -68,8 +68,8 @@ static int init_inode_xattrs(struct inode *inode)
}
it.buf = __EROFS_BUF_INITIALIZER;
- it.blkaddr = erofs_blknr(erofs_iloc(inode) + vi->inode_isize);
- it.ofs = erofs_blkoff(erofs_iloc(inode) + vi->inode_isize);
+ it.blkaddr = erofs_blknr(sb, erofs_iloc(inode) + vi->inode_isize);
+ it.ofs = erofs_blkoff(sb, erofs_iloc(inode) + vi->inode_isize);
/* read in shared xattr array (non-atomic, see kmalloc below) */
it.kaddr = erofs_read_metabuf(&it.buf, sb, it.blkaddr, EROFS_KMAP);
@@ -92,9 +92,9 @@ static int init_inode_xattrs(struct inode *inode)
it.ofs += sizeof(struct erofs_xattr_ibody_header);
for (i = 0; i < vi->xattr_shared_count; ++i) {
- if (it.ofs >= EROFS_BLKSIZ) {
+ if (it.ofs >= sb->s_blocksize) {
/* cannot be unaligned */
- DBG_BUGON(it.ofs != EROFS_BLKSIZ);
+ DBG_BUGON(it.ofs != sb->s_blocksize);
it.kaddr = erofs_read_metabuf(&it.buf, sb, ++it.blkaddr,
EROFS_KMAP);
@@ -139,15 +139,15 @@ struct xattr_iter_handlers {
static inline int xattr_iter_fixup(struct xattr_iter *it)
{
- if (it->ofs < EROFS_BLKSIZ)
+ if (it->ofs < it->sb->s_blocksize)
return 0;
- it->blkaddr += erofs_blknr(it->ofs);
+ it->blkaddr += erofs_blknr(it->sb, it->ofs);
it->kaddr = erofs_read_metabuf(&it->buf, it->sb, it->blkaddr,
EROFS_KMAP);
if (IS_ERR(it->kaddr))
return PTR_ERR(it->kaddr);
- it->ofs = erofs_blkoff(it->ofs);
+ it->ofs = erofs_blkoff(it->sb, it->ofs);
return 0;
}
@@ -165,8 +165,8 @@ static int inline_xattr_iter_begin(struct xattr_iter *it,
inline_xattr_ofs = vi->inode_isize + xattr_header_sz;
- it->blkaddr = erofs_blknr(erofs_iloc(inode) + inline_xattr_ofs);
- it->ofs = erofs_blkoff(erofs_iloc(inode) + inline_xattr_ofs);
+ it->blkaddr = erofs_blknr(it->sb, erofs_iloc(inode) + inline_xattr_ofs);
+ it->ofs = erofs_blkoff(it->sb, erofs_iloc(inode) + inline_xattr_ofs);
it->kaddr = erofs_read_metabuf(&it->buf, inode->i_sb, it->blkaddr,
EROFS_KMAP);
if (IS_ERR(it->kaddr))
@@ -222,8 +222,8 @@ static int xattr_foreach(struct xattr_iter *it,
processed = 0;
while (processed < entry.e_name_len) {
- if (it->ofs >= EROFS_BLKSIZ) {
- DBG_BUGON(it->ofs > EROFS_BLKSIZ);
+ if (it->ofs >= it->sb->s_blocksize) {
+ DBG_BUGON(it->ofs > it->sb->s_blocksize);
err = xattr_iter_fixup(it);
if (err)
@@ -231,7 +231,7 @@ static int xattr_foreach(struct xattr_iter *it,
it->ofs = 0;
}
- slice = min_t(unsigned int, EROFS_BLKSIZ - it->ofs,
+ slice = min_t(unsigned int, it->sb->s_blocksize - it->ofs,
entry.e_name_len - processed);
/* handle name */
@@ -257,8 +257,8 @@ static int xattr_foreach(struct xattr_iter *it,
}
while (processed < value_sz) {
- if (it->ofs >= EROFS_BLKSIZ) {
- DBG_BUGON(it->ofs > EROFS_BLKSIZ);
+ if (it->ofs >= it->sb->s_blocksize) {
+ DBG_BUGON(it->ofs > it->sb->s_blocksize);
err = xattr_iter_fixup(it);
if (err)
@@ -266,7 +266,7 @@ static int xattr_foreach(struct xattr_iter *it,
it->ofs = 0;
}
- slice = min_t(unsigned int, EROFS_BLKSIZ - it->ofs,
+ slice = min_t(unsigned int, it->sb->s_blocksize - it->ofs,
value_sz - processed);
op->value(it, processed, it->kaddr + it->ofs, slice);
it->ofs += slice;
@@ -352,15 +352,14 @@ static int shared_getxattr(struct inode *inode, struct getxattr_iter *it)
{
struct erofs_inode *const vi = EROFS_I(inode);
struct super_block *const sb = inode->i_sb;
- struct erofs_sb_info *const sbi = EROFS_SB(sb);
unsigned int i;
int ret = -ENOATTR;
for (i = 0; i < vi->xattr_shared_count; ++i) {
erofs_blk_t blkaddr =
- xattrblock_addr(sbi, vi->xattr_shared_xattrs[i]);
+ xattrblock_addr(sb, vi->xattr_shared_xattrs[i]);
- it->it.ofs = xattrblock_offset(sbi, vi->xattr_shared_xattrs[i]);
+ it->it.ofs = xattrblock_offset(sb, vi->xattr_shared_xattrs[i]);
it->it.kaddr = erofs_read_metabuf(&it->it.buf, sb, blkaddr,
EROFS_KMAP);
if (IS_ERR(it->it.kaddr))
@@ -564,15 +563,14 @@ static int shared_listxattr(struct listxattr_iter *it)
struct inode *const inode = d_inode(it->dentry);
struct erofs_inode *const vi = EROFS_I(inode);
struct super_block *const sb = inode->i_sb;
- struct erofs_sb_info *const sbi = EROFS_SB(sb);
unsigned int i;
int ret = 0;
for (i = 0; i < vi->xattr_shared_count; ++i) {
erofs_blk_t blkaddr =
- xattrblock_addr(sbi, vi->xattr_shared_xattrs[i]);
+ xattrblock_addr(sb, vi->xattr_shared_xattrs[i]);
- it->it.ofs = xattrblock_offset(sbi, vi->xattr_shared_xattrs[i]);
+ it->it.ofs = xattrblock_offset(sb, vi->xattr_shared_xattrs[i]);
it->it.kaddr = erofs_read_metabuf(&it->it.buf, sb, blkaddr,
EROFS_KMAP);
if (IS_ERR(it->it.kaddr))
diff --git a/fs/erofs/xattr.h b/fs/erofs/xattr.h
index 0a43c9ee9f8f..f7a21aaa9755 100644
--- a/fs/erofs/xattr.h
+++ b/fs/erofs/xattr.h
@@ -19,21 +19,21 @@ static inline unsigned int inlinexattr_header_size(struct inode *inode)
sizeof(u32) * EROFS_I(inode)->xattr_shared_count;
}
-static inline erofs_blk_t xattrblock_addr(struct erofs_sb_info *sbi,
+static inline erofs_blk_t xattrblock_addr(struct super_block *sb,
unsigned int xattr_id)
{
#ifdef CONFIG_EROFS_FS_XATTR
- return sbi->xattr_blkaddr +
- xattr_id * sizeof(__u32) / EROFS_BLKSIZ;
+ return EROFS_SB(sb)->xattr_blkaddr +
+ xattr_id * sizeof(__u32) / sb->s_blocksize;
#else
return 0;
#endif
}
-static inline unsigned int xattrblock_offset(struct erofs_sb_info *sbi,
+static inline unsigned int xattrblock_offset(struct super_block *sb,
unsigned int xattr_id)
{
- return (xattr_id * sizeof(__u32)) % EROFS_BLKSIZ;
+ return (xattr_id * sizeof(__u32)) % sb->s_blocksize;
}
#ifdef CONFIG_EROFS_FS_XATTR
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index 8ea3f5fe985e..ea31163b4294 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -805,7 +805,7 @@ static int z_erofs_register_pcluster(struct z_erofs_decompress_frontend *fe)
if (ztailpacking) {
pcl->obj.index = 0; /* which indicates ztailpacking */
- pcl->pageofs_in = erofs_blkoff(map->m_pa);
+ pcl->pageofs_in = erofs_blkoff(fe->inode->i_sb, map->m_pa);
pcl->tailpacking_size = map->m_plen;
} else {
pcl->obj.index = map->m_pa >> PAGE_SHIFT;
@@ -928,6 +928,7 @@ static int z_erofs_read_fragment(struct inode *inode, erofs_off_t pos,
struct page *page, unsigned int pageofs,
unsigned int len)
{
+ struct super_block *sb = inode->i_sb;
struct inode *packed_inode = EROFS_I_SB(inode)->packed_inode;
struct erofs_buf buf = __EROFS_BUF_INITIALIZER;
u8 *src, *dst;
@@ -939,16 +940,16 @@ static int z_erofs_read_fragment(struct inode *inode, erofs_off_t pos,
pos += EROFS_I(inode)->z_fragmentoff;
for (i = 0; i < len; i += cnt) {
cnt = min_t(unsigned int, len - i,
- EROFS_BLKSIZ - erofs_blkoff(pos));
+ sb->s_blocksize - erofs_blkoff(sb, pos));
src = erofs_bread(&buf, packed_inode,
- erofs_blknr(pos), EROFS_KMAP);
+ erofs_blknr(sb, pos), EROFS_KMAP);
if (IS_ERR(src)) {
erofs_put_metabuf(&buf);
return PTR_ERR(src);
}
dst = kmap_local_page(page);
- memcpy(dst + pageofs + i, src + erofs_blkoff(pos), cnt);
+ memcpy(dst + pageofs + i, src + erofs_blkoff(sb, pos), cnt);
kunmap_local(dst);
pos += cnt;
}
@@ -1003,7 +1004,8 @@ static int z_erofs_do_read_page(struct z_erofs_decompress_frontend *fe,
void *mp;
mp = erofs_read_metabuf(&fe->map.buf, inode->i_sb,
- erofs_blknr(map->m_pa), EROFS_NO_KMAP);
+ erofs_blknr(inode->i_sb, map->m_pa),
+ EROFS_NO_KMAP);
if (IS_ERR(mp)) {
err = PTR_ERR(mp);
erofs_err(inode->i_sb,
@@ -1724,11 +1726,11 @@ static void z_erofs_submit_queue(struct z_erofs_decompress_frontend *f,
/* no device id here, thus it will always succeed */
mdev = (struct erofs_map_dev) {
- .m_pa = blknr_to_addr(pcl->obj.index),
+ .m_pa = erofs_pos(sb, pcl->obj.index),
};
(void)erofs_map_dev(sb, &mdev);
- cur = erofs_blknr(mdev.m_pa);
+ cur = erofs_blknr(sb, mdev.m_pa);
end = cur + pcl->pclusterpages;
do {
@@ -1762,7 +1764,7 @@ static void z_erofs_submit_queue(struct z_erofs_decompress_frontend *f,
last_bdev = mdev.m_bdev;
bio->bi_iter.bi_sector = (sector_t)cur <<
- LOG_SECTORS_PER_BLOCK;
+ (sb->s_blocksize_bits - 9);
bio->bi_private = q[JQ_SUBMIT];
if (f->readahead)
bio->bi_opf |= REQ_RAHEAD;
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 8bf6d30518b6..fb01827967fb 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -18,7 +18,7 @@ int z_erofs_fill_inode(struct inode *inode)
vi->z_advise = 0;
vi->z_algorithmtype[0] = 0;
vi->z_algorithmtype[1] = 0;
- vi->z_logical_clusterbits = LOG_BLOCK_SIZE;
+ vi->z_logical_clusterbits = inode->i_sb->s_blocksize_bits;
set_bit(EROFS_I_Z_INITED_BIT, &vi->flags);
}
inode->i_mapping->a_ops = &z_erofs_aops;
@@ -53,13 +53,13 @@ static int legacy_load_cluster_from_disk(struct z_erofs_maprecorder *m,
unsigned int advise, type;
m->kaddr = erofs_read_metabuf(&m->map->buf, inode->i_sb,
- erofs_blknr(pos), EROFS_KMAP);
+ erofs_blknr(inode->i_sb, pos), EROFS_KMAP);
if (IS_ERR(m->kaddr))
return PTR_ERR(m->kaddr);
m->nextpackoff = pos + sizeof(struct z_erofs_vle_decompressed_index);
m->lcn = lcn;
- di = m->kaddr + erofs_blkoff(pos);
+ di = m->kaddr + erofs_blkoff(inode->i_sb, pos);
advise = le16_to_cpu(di->di_advise);
type = (advise >> Z_EROFS_VLE_DI_CLUSTER_TYPE_BIT) &
@@ -156,7 +156,7 @@ static int unpack_compacted_index(struct z_erofs_maprecorder *m,
(vcnt << amortizedshift);
big_pcluster = vi->z_advise & Z_EROFS_ADVISE_BIG_PCLUSTER_1;
encodebits = ((vcnt << amortizedshift) - sizeof(__le32)) * 8 / vcnt;
- eofs = erofs_blkoff(pos);
+ eofs = erofs_blkoff(m->inode->i_sb, pos);
base = round_down(eofs, vcnt << amortizedshift);
in = m->kaddr + base;
@@ -249,7 +249,7 @@ static int compacted_load_cluster_from_disk(struct z_erofs_maprecorder *m,
const unsigned int lclusterbits = vi->z_logical_clusterbits;
const erofs_off_t ebase = sizeof(struct z_erofs_map_header) +
ALIGN(erofs_iloc(inode) + vi->inode_isize + vi->xattr_isize, 8);
- const unsigned int totalidx = DIV_ROUND_UP(inode->i_size, EROFS_BLKSIZ);
+ unsigned int totalidx = DIV_ROUND_UP(inode->i_size, inode->i_sb->s_blocksize);
unsigned int compacted_4b_initial, compacted_2b;
unsigned int amortizedshift;
erofs_off_t pos;
@@ -290,7 +290,7 @@ static int compacted_load_cluster_from_disk(struct z_erofs_maprecorder *m,
out:
pos += lcn * (1 << amortizedshift);
m->kaddr = erofs_read_metabuf(&m->map->buf, inode->i_sb,
- erofs_blknr(pos), EROFS_KMAP);
+ erofs_blknr(inode->i_sb, pos), EROFS_KMAP);
if (IS_ERR(m->kaddr))
return PTR_ERR(m->kaddr);
return unpack_compacted_index(m, amortizedshift, pos, lookahead);
@@ -360,6 +360,7 @@ static int z_erofs_extent_lookback(struct z_erofs_maprecorder *m,
static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
unsigned int initial_lcn)
{
+ struct super_block *sb = m->inode->i_sb;
struct erofs_inode *const vi = EROFS_I(m->inode);
struct erofs_map_blocks *const map = m->map;
const unsigned int lclusterbits = vi->z_logical_clusterbits;
@@ -406,7 +407,7 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
* if the 1st NONHEAD lcluster is actually PLAIN or HEAD type
* rather than CBLKCNT, it's a 1 lcluster-sized pcluster.
*/
- m->compressedblks = 1 << (lclusterbits - LOG_BLOCK_SIZE);
+ m->compressedblks = 1 << (lclusterbits - sb->s_blocksize_bits);
break;
case Z_EROFS_VLE_CLUSTER_TYPE_NONHEAD:
if (m->delta[0] != 1)
@@ -422,7 +423,7 @@ static int z_erofs_get_extent_compressedlen(struct z_erofs_maprecorder *m,
return -EFSCORRUPTED;
}
out:
- map->m_plen = (u64)m->compressedblks << LOG_BLOCK_SIZE;
+ map->m_plen = (u64)m->compressedblks << sb->s_blocksize_bits;
return 0;
err_bonus_cblkcnt:
erofs_err(m->inode->i_sb,
@@ -565,7 +566,7 @@ static int z_erofs_do_map_blocks(struct inode *inode,
} else if (fragment && m.lcn == vi->z_tailextent_headlcn) {
map->m_flags |= EROFS_MAP_FRAGMENT;
} else {
- map->m_pa = blknr_to_addr(m.pblk);
+ map->m_pa = erofs_pos(inode->i_sb, m.pblk);
err = z_erofs_get_extent_compressedlen(&m, initial_lcn);
if (err)
goto unmap_out;
@@ -592,7 +593,7 @@ static int z_erofs_do_map_blocks(struct inode *inode,
if ((flags & EROFS_GET_BLOCKS_FIEMAP) ||
((flags & EROFS_GET_BLOCKS_READMORE) &&
map->m_algorithmformat == Z_EROFS_COMPRESSION_LZMA &&
- map->m_llen >= EROFS_BLKSIZ)) {
+ map->m_llen >= inode->i_sb->s_blocksize)) {
err = z_erofs_get_extent_decompressedlen(&m);
if (!err)
map->m_flags |= EROFS_MAP_FULL_MAPPED;
@@ -633,13 +634,13 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
goto out_unlock;
pos = ALIGN(erofs_iloc(inode) + vi->inode_isize + vi->xattr_isize, 8);
- kaddr = erofs_read_metabuf(&buf, sb, erofs_blknr(pos), EROFS_KMAP);
+ kaddr = erofs_read_metabuf(&buf, sb, erofs_blknr(sb, pos), EROFS_KMAP);
if (IS_ERR(kaddr)) {
err = PTR_ERR(kaddr);
goto out_unlock;
}
- h = kaddr + erofs_blkoff(pos);
+ h = kaddr + erofs_blkoff(sb, pos);
/*
* if the highest bit of the 8-byte map header is set, the whole file
* is stored in the packed inode. The rest bits keeps z_fragmentoff.
@@ -663,7 +664,7 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
goto out_put_metabuf;
}
- vi->z_logical_clusterbits = LOG_BLOCK_SIZE + (h->h_clusterbits & 7);
+ vi->z_logical_clusterbits = sb->s_blocksize_bits + (h->h_clusterbits & 7);
if (!erofs_sb_has_big_pcluster(EROFS_SB(sb)) &&
vi->z_advise & (Z_EROFS_ADVISE_BIG_PCLUSTER_1 |
Z_EROFS_ADVISE_BIG_PCLUSTER_2)) {
@@ -692,7 +693,7 @@ static int z_erofs_fill_inode_lazy(struct inode *inode)
erofs_put_metabuf(&map.buf);
if (!map.m_plen ||
- erofs_blkoff(map.m_pa) + map.m_plen > EROFS_BLKSIZ) {
+ erofs_blkoff(sb, map.m_pa) + map.m_plen > sb->s_blocksize) {
erofs_err(sb, "invalid tail-packing pclustersize %llu",
map.m_plen);
err = -EFSCORRUPTED;
diff --git a/include/trace/events/erofs.h b/include/trace/events/erofs.h
index cf4a0d28b178..71dbe8bfa7db 100644
--- a/include/trace/events/erofs.h
+++ b/include/trace/events/erofs.h
@@ -71,8 +71,8 @@ TRACE_EVENT(erofs_fill_inode,
TP_fast_assign(
__entry->dev = inode->i_sb->s_dev;
__entry->nid = EROFS_I(inode)->nid;
- __entry->blkaddr = erofs_blknr(erofs_iloc(inode));
- __entry->ofs = erofs_blkoff(erofs_iloc(inode));
+ __entry->blkaddr = erofs_blknr(inode->i_sb, erofs_iloc(inode));
+ __entry->ofs = erofs_blkoff(inode->i_sb, erofs_iloc(inode));
),
TP_printk("dev = (%d,%d), nid = %llu, blkaddr %u ofs %u",
--
2.19.1.6.gb485710b
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