[PATCH 18/21] erofs: add "erofs_" prefix for common and short functions
Gao Xiang
hsiangkao at aol.com
Sun Sep 1 05:51:27 UTC 2019
From: Gao Xiang <gaoxiang25 at huawei.com>
Add erofs_ prefix to free_inode, alloc_inode, ...
Reported-by: Christoph Hellwig <hch at infradead.org>
Signed-off-by: Gao Xiang <gaoxiang25 at huawei.com>
---
fs/erofs/data.c | 6 +++---
fs/erofs/decompressor.c | 22 +++++++++++-----------
fs/erofs/inode.c | 8 ++++----
fs/erofs/namei.c | 10 +++++-----
fs/erofs/super.c | 26 +++++++++++++-------------
fs/erofs/zdata.c | 19 ++++++++++---------
6 files changed, 46 insertions(+), 45 deletions(-)
diff --git a/fs/erofs/data.c b/fs/erofs/data.c
index d3cd7a453648..e8325eaa0fd8 100644
--- a/fs/erofs/data.c
+++ b/fs/erofs/data.c
@@ -9,7 +9,7 @@
#include <trace/events/erofs.h>
-static inline void read_endio(struct bio *bio)
+static void erofs_readendio(struct bio *bio)
{
struct super_block *const sb = bio->bi_private;
struct bio_vec *bvec;
@@ -58,7 +58,7 @@ struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr)
struct bio *bio;
bio = erofs_grab_bio(sb, REQ_OP_READ | REQ_META,
- blkaddr, 1, sb, read_endio);
+ blkaddr, 1, sb, erofs_readendio);
if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE) {
err = -EFAULT;
@@ -260,7 +260,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio,
nblocks = BIO_MAX_PAGES;
bio = erofs_grab_bio(sb, REQ_OP_READ, blknr, nblocks,
- sb, read_endio);
+ sb, erofs_readendio);
}
err = bio_add_page(bio, page, PAGE_SIZE, 0);
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index df349888f911..bb2944c96c89 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -32,8 +32,8 @@ static bool use_vmap;
module_param(use_vmap, bool, 0444);
MODULE_PARM_DESC(use_vmap, "Use vmap() instead of vm_map_ram() (default 0)");
-static int lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
- struct list_head *pagepool)
+static int z_erofs_lz4_prepare_destpages(struct z_erofs_decompress_req *rq,
+ struct list_head *pagepool)
{
const unsigned int nr =
PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -114,7 +114,7 @@ static void *generic_copy_inplace_data(struct z_erofs_decompress_req *rq,
return tmp;
}
-static int lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
+static int z_erofs_lz4_decompress(struct z_erofs_decompress_req *rq, u8 *out)
{
unsigned int inputmargin, inlen;
u8 *src;
@@ -187,8 +187,8 @@ static struct z_erofs_decompressor decompressors[] = {
.name = "shifted"
},
[Z_EROFS_COMPRESSION_LZ4] = {
- .prepare_destpages = lz4_prepare_destpages,
- .decompress = lz4_decompress,
+ .prepare_destpages = z_erofs_lz4_prepare_destpages,
+ .decompress = z_erofs_lz4_decompress,
.name = "lz4"
},
};
@@ -246,8 +246,8 @@ static void erofs_vunmap(const void *mem, unsigned int count)
vunmap(mem);
}
-static int decompress_generic(struct z_erofs_decompress_req *rq,
- struct list_head *pagepool)
+static int z_erofs_decompress_generic(struct z_erofs_decompress_req *rq,
+ struct list_head *pagepool)
{
const unsigned int nrpages_out =
PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -307,8 +307,8 @@ static int decompress_generic(struct z_erofs_decompress_req *rq,
return ret;
}
-static int shifted_decompress(const struct z_erofs_decompress_req *rq,
- struct list_head *pagepool)
+static int z_erofs_shifted_transform(const struct z_erofs_decompress_req *rq,
+ struct list_head *pagepool)
{
const unsigned int nrpages_out =
PAGE_ALIGN(rq->pageofs_out + rq->outputsize) >> PAGE_SHIFT;
@@ -352,7 +352,7 @@ int z_erofs_decompress(struct z_erofs_decompress_req *rq,
struct list_head *pagepool)
{
if (rq->alg == Z_EROFS_COMPRESSION_SHIFTED)
- return shifted_decompress(rq, pagepool);
- return decompress_generic(rq, pagepool);
+ return z_erofs_shifted_transform(rq, pagepool);
+ return z_erofs_decompress_generic(rq, pagepool);
}
diff --git a/fs/erofs/inode.c b/fs/erofs/inode.c
index 6e2486cc3cd4..7da5a41f82e3 100644
--- a/fs/erofs/inode.c
+++ b/fs/erofs/inode.c
@@ -9,7 +9,7 @@
#include <trace/events/erofs.h>
/* no locking */
-static int read_inode(struct inode *inode, void *data)
+static int erofs_read_inode(struct inode *inode, void *data)
{
struct erofs_inode *vi = EROFS_I(inode);
struct erofs_inode_v1 *v1 = data;
@@ -158,7 +158,7 @@ static int erofs_fill_symlink(struct inode *inode, void *data,
return 0;
}
-static int fill_inode(struct inode *inode, int isdir)
+static int erofs_fill_inode(struct inode *inode, int isdir)
{
struct erofs_sb_info *sbi = EROFS_SB(inode->i_sb);
struct erofs_inode *vi = EROFS_I(inode);
@@ -188,7 +188,7 @@ static int fill_inode(struct inode *inode, int isdir)
DBG_BUGON(!PageUptodate(page));
data = page_address(page);
- err = read_inode(inode, data + ofs);
+ err = erofs_read_inode(inode, data + ofs);
if (!err) {
/* setup the new inode */
switch (inode->i_mode & S_IFMT) {
@@ -281,7 +281,7 @@ struct inode *erofs_iget(struct super_block *sb,
vi->nid = nid;
- err = fill_inode(inode, isdir);
+ err = erofs_fill_inode(inode, isdir);
if (!err)
unlock_new_inode(inode);
else {
diff --git a/fs/erofs/namei.c b/fs/erofs/namei.c
index a6b6a4ab1403..108033be8af5 100644
--- a/fs/erofs/namei.c
+++ b/fs/erofs/namei.c
@@ -14,9 +14,9 @@ struct erofs_qstr {
};
/* based on the end of qn is accurate and it must have the trailing '\0' */
-static inline int dirnamecmp(const struct erofs_qstr *qn,
- const struct erofs_qstr *qd,
- unsigned int *matched)
+static inline int erofs_dirnamecmp(const struct erofs_qstr *qn,
+ const struct erofs_qstr *qd,
+ unsigned int *matched)
{
unsigned int i = *matched;
@@ -71,7 +71,7 @@ static struct erofs_dirent *find_target_dirent(struct erofs_qstr *name,
};
/* string comparison without already matched prefix */
- int ret = dirnamecmp(name, &dname, &matched);
+ int ret = erofs_dirnamecmp(name, &dname, &matched);
if (!ret) {
return de + mid;
@@ -134,7 +134,7 @@ static struct page *find_target_block_classic(struct inode *dir,
EROFS_BLKSIZ);
/* string comparison without already matched prefix */
- diff = dirnamecmp(name, &dname, &matched);
+ diff = erofs_dirnamecmp(name, &dname, &matched);
kunmap_atomic(de);
if (!diff) {
diff --git a/fs/erofs/super.c b/fs/erofs/super.c
index b4bf72755300..7bdd9f47c4ac 100644
--- a/fs/erofs/super.c
+++ b/fs/erofs/super.c
@@ -16,12 +16,12 @@
static struct kmem_cache *erofs_inode_cachep __read_mostly;
-static void init_once(void *ptr)
+static void erofs_inode_init_once(void *ptr)
{
inode_init_once(&((struct erofs_inode *)ptr)->vfs_inode);
}
-static struct inode *alloc_inode(struct super_block *sb)
+static struct inode *erofs_alloc_inode(struct super_block *sb)
{
struct erofs_inode *vi =
kmem_cache_alloc(erofs_inode_cachep, GFP_KERNEL);
@@ -34,7 +34,7 @@ static struct inode *alloc_inode(struct super_block *sb)
return &vi->vfs_inode;
}
-static void free_inode(struct inode *inode)
+static void erofs_free_inode(struct inode *inode)
{
struct erofs_inode *vi = EROFS_I(inode);
@@ -62,7 +62,7 @@ static bool check_layout_compatibility(struct super_block *sb,
return true;
}
-static int superblock_read(struct super_block *sb)
+static int erofs_read_superblock(struct super_block *sb)
{
struct erofs_sb_info *sbi;
struct buffer_head *bh;
@@ -217,7 +217,7 @@ static int erofs_build_cache_strategy(struct erofs_sb_info *sbi,
#endif
/* set up default EROFS parameters */
-static void default_options(struct erofs_sb_info *sbi)
+static void erofs_default_options(struct erofs_sb_info *sbi)
{
#ifdef CONFIG_EROFS_FS_ZIP
sbi->cache_strategy = EROFS_ZIP_CACHE_READAROUND;
@@ -251,7 +251,7 @@ static match_table_t erofs_tokens = {
{Opt_err, NULL}
};
-static int parse_options(struct super_block *sb, char *options)
+static int erofs_parse_options(struct super_block *sb, char *options)
{
substring_t args[MAX_OPT_ARGS];
char *p;
@@ -395,7 +395,7 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent)
return -ENOMEM;
sb->s_fs_info = sbi;
- err = superblock_read(sb);
+ err = erofs_read_superblock(sb);
if (err)
return err;
@@ -409,9 +409,9 @@ static int erofs_fill_super(struct super_block *sb, void *data, int silent)
sb->s_xattr = erofs_xattr_handlers;
#endif
/* set erofs default mount options */
- default_options(sbi);
+ erofs_default_options(sbi);
- err = parse_options(sb, data);
+ err = erofs_parse_options(sb, data);
if (err)
return err;
@@ -511,7 +511,7 @@ static int __init erofs_module_init(void)
erofs_inode_cachep = kmem_cache_create("erofs_inode",
sizeof(struct erofs_inode), 0,
SLAB_RECLAIM_ACCOUNT,
- init_once);
+ erofs_inode_init_once);
if (!erofs_inode_cachep) {
err = -ENOMEM;
goto icache_err;
@@ -618,7 +618,7 @@ static int erofs_remount(struct super_block *sb, int *flags, char *data)
int err;
DBG_BUGON(!sb_rdonly(sb));
- err = parse_options(sb, data);
+ err = erofs_parse_options(sb, data);
if (err)
goto out;
@@ -638,8 +638,8 @@ static int erofs_remount(struct super_block *sb, int *flags, char *data)
const struct super_operations erofs_sops = {
.put_super = erofs_put_super,
- .alloc_inode = alloc_inode,
- .free_inode = free_inode,
+ .alloc_inode = erofs_alloc_inode,
+ .free_inode = erofs_free_inode,
.statfs = erofs_statfs,
.show_options = erofs_show_options,
.remount_fs = erofs_remount,
diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c
index ce1a0f2997a9..3af040c608f1 100644
--- a/fs/erofs/zdata.c
+++ b/fs/erofs/zdata.c
@@ -40,7 +40,7 @@ void z_erofs_exit_zip_subsystem(void)
kmem_cache_destroy(pcluster_cachep);
}
-static inline int init_unzip_workqueue(void)
+static inline int z_erofs_init_workqueue(void)
{
const unsigned int onlinecpus = num_possible_cpus();
const unsigned int flags = WQ_UNBOUND | WQ_HIGHPRI | WQ_CPU_INTENSIVE;
@@ -54,7 +54,7 @@ static inline int init_unzip_workqueue(void)
return z_erofs_workqueue ? 0 : -ENOMEM;
}
-static void init_once(void *ptr)
+static void z_erofs_pcluster_init_once(void *ptr)
{
struct z_erofs_pcluster *pcl = ptr;
struct z_erofs_collection *cl = z_erofs_primarycollection(pcl);
@@ -67,7 +67,7 @@ static void init_once(void *ptr)
pcl->compressed_pages[i] = NULL;
}
-static void init_always(struct z_erofs_pcluster *pcl)
+static void z_erofs_pcluster_init_always(struct z_erofs_pcluster *pcl)
{
struct z_erofs_collection *cl = z_erofs_primarycollection(pcl);
@@ -81,9 +81,10 @@ int __init z_erofs_init_zip_subsystem(void)
{
pcluster_cachep = kmem_cache_create("erofs_compress",
Z_EROFS_WORKGROUP_SIZE, 0,
- SLAB_RECLAIM_ACCOUNT, init_once);
+ SLAB_RECLAIM_ACCOUNT,
+ z_erofs_pcluster_init_once);
if (pcluster_cachep) {
- if (!init_unzip_workqueue())
+ if (!z_erofs_init_workqueue())
return 0;
kmem_cache_destroy(pcluster_cachep);
@@ -272,8 +273,8 @@ int erofs_try_to_free_cached_page(struct address_space *mapping,
}
/* page_type must be Z_EROFS_PAGE_TYPE_EXCLUSIVE */
-static inline bool try_inplace_io(struct z_erofs_collector *clt,
- struct page *page)
+static inline bool z_erofs_try_inplace_io(struct z_erofs_collector *clt,
+ struct page *page)
{
struct z_erofs_pcluster *const pcl = clt->pcl;
const unsigned int clusterpages = BIT(pcl->clusterbits);
@@ -296,7 +297,7 @@ static int z_erofs_attach_page(struct z_erofs_collector *clt,
/* give priority for inplaceio */
if (clt->mode >= COLLECT_PRIMARY &&
type == Z_EROFS_PAGE_TYPE_EXCLUSIVE &&
- try_inplace_io(clt, page))
+ z_erofs_try_inplace_io(clt, page))
return 0;
ret = z_erofs_pagevec_enqueue(&clt->vector,
@@ -409,7 +410,7 @@ static struct z_erofs_collection *clregister(struct z_erofs_collector *clt,
if (!pcl)
return ERR_PTR(-ENOMEM);
- init_always(pcl);
+ z_erofs_pcluster_init_always(pcl);
pcl->obj.index = map->m_pa >> PAGE_SHIFT;
pcl->length = (map->m_llen << Z_EROFS_PCLUSTER_LENGTH_BIT) |
--
2.17.1
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