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Message-Id: <20191112211238.156490-11-Valdis.Kletnieks@vt.edu>
Date: Tue, 12 Nov 2019 16:12:36 -0500
From: Valdis Kletnieks <valdis.kletnieks@...edu>
To: unlisted-recipients:; (no To-header on input)
Cc: Valdis Kletnieks <Valdis.Kletnieks@...edu>,
Valdis Kletnieks <valdis.kletnieks@...edu>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
linux-fsdevel@...r.kernel.org, devel@...verdev.osuosl.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 10/12] staging: exfat: Clean up the namespace pollution part 6
Move a few more things so we can make them static and clear exfat.h out.
At this point, pretty much everything that can be static is static.
(Note: FAT_sync(), buf_sync(), and sync_alloc_bitmap() aren't called
anyplace, but aren't static because (a) that will toss an error and
(b) they probably *should* be getting called someplace
Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@...edu>
---
drivers/staging/exfat/exfat.h | 8 --
drivers/staging/exfat/exfat_core.c | 170 ++++++++++++++---------------
2 files changed, 85 insertions(+), 93 deletions(-)
diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h
index c41fc3ec9f29..188ea1bd7162 100644
--- a/drivers/staging/exfat/exfat.h
+++ b/drivers/staging/exfat/exfat.h
@@ -780,12 +780,6 @@ struct entry_set_cache_t *get_entry_set_in_dir(struct super_block *sb,
u32 type,
struct dentry_t **file_ep);
void release_entry_set(struct entry_set_cache_t *es);
-s32 write_whole_entry_set(struct super_block *sb, struct entry_set_cache_t *es);
-s32 write_partial_entries_in_entry_set(struct super_block *sb,
- struct entry_set_cache_t *es,
- struct dentry_t *ep, u32 count);
-s32 search_deleted_or_unused_entry(struct super_block *sb,
- struct chain_t *p_dir, s32 num_entries);
s32 count_dos_name_entries(struct super_block *sb, struct chain_t *p_dir,
u32 type);
void update_dir_checksum(struct super_block *sb, struct chain_t *p_dir,
@@ -798,8 +792,6 @@ bool is_dir_empty(struct super_block *sb, struct chain_t *p_dir);
s32 get_num_entries_and_dos_name(struct super_block *sb, struct chain_t *p_dir,
struct uni_name_t *p_uniname, s32 *entries,
struct dos_name_t *p_dosname);
-s32 extract_uni_name_from_name_entry(struct name_dentry_t *ep,
- u16 *uniname, s32 order);
u16 calc_checksum_2byte(void *data, s32 len, u16 chksum, s32 type);
/* name resolution functions */
diff --git a/drivers/staging/exfat/exfat_core.c b/drivers/staging/exfat/exfat_core.c
index 8d38f70c9726..3cc13aaaed24 100644
--- a/drivers/staging/exfat/exfat_core.c
+++ b/drivers/staging/exfat/exfat_core.c
@@ -1140,6 +1140,73 @@ void update_dir_checksum(struct super_block *sb, struct chain_t *p_dir,
buf_unlock(sb, sector);
}
+static s32 __write_partial_entries_in_entry_set(struct super_block *sb,
+ struct entry_set_cache_t *es,
+ sector_t sec, s32 off, u32 count)
+{
+ s32 num_entries, buf_off = (off - es->offset);
+ u32 remaining_byte_in_sector, copy_entries;
+ struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
+ struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
+ u32 clu;
+ u8 *buf, *esbuf = (u8 *)&es->__buf;
+
+ pr_debug("%s entered es %p sec %llu off %d count %d\n",
+ __func__, es, (unsigned long long)sec, off, count);
+ num_entries = count;
+
+ while (num_entries) {
+ /* white per sector base */
+ remaining_byte_in_sector = (1 << p_bd->sector_size_bits) - off;
+ copy_entries = min_t(s32,
+ remaining_byte_in_sector >> DENTRY_SIZE_BITS,
+ num_entries);
+ buf = buf_getblk(sb, sec);
+ if (!buf)
+ goto err_out;
+ pr_debug("es->buf %p buf_off %u\n", esbuf, buf_off);
+ pr_debug("copying %d entries from %p to sector %llu\n",
+ copy_entries, (esbuf + buf_off),
+ (unsigned long long)sec);
+ memcpy(buf + off, esbuf + buf_off,
+ copy_entries << DENTRY_SIZE_BITS);
+ buf_modify(sb, sec);
+ num_entries -= copy_entries;
+
+ if (num_entries) {
+ /* get next sector */
+ if (IS_LAST_SECTOR_IN_CLUSTER(sec)) {
+ clu = GET_CLUSTER_FROM_SECTOR(sec);
+ if (es->alloc_flag == 0x03) {
+ clu++;
+ } else {
+ if (FAT_read(sb, clu, &clu) == -1)
+ goto err_out;
+ }
+ sec = START_SECTOR(clu);
+ } else {
+ sec++;
+ }
+ off = 0;
+ buf_off += copy_entries << DENTRY_SIZE_BITS;
+ }
+ }
+
+ pr_debug("%s exited successfully\n", __func__);
+ return 0;
+err_out:
+ pr_debug("%s failed\n", __func__);
+ return -EINVAL;
+}
+
+/* write back all entries in entry set */
+static s32 write_whole_entry_set(struct super_block *sb, struct entry_set_cache_t *es)
+{
+ return __write_partial_entries_in_entry_set(sb, es, es->sector,
+ es->offset,
+ es->num_entries);
+}
+
void update_dir_checksum_with_entry_set(struct super_block *sb,
struct entry_set_cache_t *es)
{
@@ -1421,75 +1488,8 @@ void release_entry_set(struct entry_set_cache_t *es)
kfree(es);
}
-static s32 __write_partial_entries_in_entry_set(struct super_block *sb,
- struct entry_set_cache_t *es,
- sector_t sec, s32 off, u32 count)
-{
- s32 num_entries, buf_off = (off - es->offset);
- u32 remaining_byte_in_sector, copy_entries;
- struct fs_info_t *p_fs = &(EXFAT_SB(sb)->fs_info);
- struct bd_info_t *p_bd = &(EXFAT_SB(sb)->bd_info);
- u32 clu;
- u8 *buf, *esbuf = (u8 *)&es->__buf;
-
- pr_debug("%s entered es %p sec %llu off %d count %d\n",
- __func__, es, (unsigned long long)sec, off, count);
- num_entries = count;
-
- while (num_entries) {
- /* white per sector base */
- remaining_byte_in_sector = (1 << p_bd->sector_size_bits) - off;
- copy_entries = min_t(s32,
- remaining_byte_in_sector >> DENTRY_SIZE_BITS,
- num_entries);
- buf = buf_getblk(sb, sec);
- if (!buf)
- goto err_out;
- pr_debug("es->buf %p buf_off %u\n", esbuf, buf_off);
- pr_debug("copying %d entries from %p to sector %llu\n",
- copy_entries, (esbuf + buf_off),
- (unsigned long long)sec);
- memcpy(buf + off, esbuf + buf_off,
- copy_entries << DENTRY_SIZE_BITS);
- buf_modify(sb, sec);
- num_entries -= copy_entries;
-
- if (num_entries) {
- /* get next sector */
- if (IS_LAST_SECTOR_IN_CLUSTER(sec)) {
- clu = GET_CLUSTER_FROM_SECTOR(sec);
- if (es->alloc_flag == 0x03) {
- clu++;
- } else {
- if (FAT_read(sb, clu, &clu) == -1)
- goto err_out;
- }
- sec = START_SECTOR(clu);
- } else {
- sec++;
- }
- off = 0;
- buf_off += copy_entries << DENTRY_SIZE_BITS;
- }
- }
-
- pr_debug("%s exited successfully\n", __func__);
- return 0;
-err_out:
- pr_debug("%s failed\n", __func__);
- return -EINVAL;
-}
-
-/* write back all entries in entry set */
-s32 write_whole_entry_set(struct super_block *sb, struct entry_set_cache_t *es)
-{
- return __write_partial_entries_in_entry_set(sb, es, es->sector,
- es->offset,
- es->num_entries);
-}
-
/* search EMPTY CONTINUOUS "num_entries" entries */
-s32 search_deleted_or_unused_entry(struct super_block *sb,
+static s32 search_deleted_or_unused_entry(struct super_block *sb,
struct chain_t *p_dir, s32 num_entries)
{
int i, dentry, num_empty = 0;
@@ -1665,6 +1665,23 @@ static s32 find_empty_entry(struct inode *inode, struct chain_t *p_dir, s32 num_
return dentry;
}
+static s32 extract_uni_name_from_name_entry(struct name_dentry_t *ep, u16 *uniname,
+ s32 order)
+{
+ int i, len = 0;
+
+ for (i = 0; i < 30; i += 2) {
+ *uniname = GET16_A(ep->unicode_0_14 + i);
+ if (*uniname == 0x0)
+ return len;
+ uniname++;
+ len++;
+ }
+
+ *uniname = 0x0;
+ return len;
+}
+
/* return values of exfat_find_dir_entry()
* >= 0 : return dir entiry position with the name in dir
* -1 : (root dir, ".") it is the root dir itself
@@ -2013,23 +2030,6 @@ static void exfat_get_uni_name_from_ext_entry(struct super_block *sb,
release_entry_set(es);
}
-s32 extract_uni_name_from_name_entry(struct name_dentry_t *ep, u16 *uniname,
- s32 order)
-{
- int i, len = 0;
-
- for (i = 0; i < 30; i += 2) {
- *uniname = GET16_A(ep->unicode_0_14 + i);
- if (*uniname == 0x0)
- return len;
- uniname++;
- len++;
- }
-
- *uniname = 0x0;
- return len;
-}
-
static s32 exfat_calc_num_entries(struct uni_name_t *p_uniname)
{
s32 len;
--
2.24.0
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