iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

f2fs: compress tmp files given extension

Browse Source 
Let's compress tmp files for the given extension list.

This patch does not change the previous behavior, but allow the cases as below.

Extention example: "ext"

- abc.ext : allow
- abc.ext.abc : allow
- abc.extm : not allow

Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2023-06-06 10:17:47 -07:00
parent 6201c478de
commit 2724daf6c2
1 changed files with 21 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
fs/f2fs/namei.c
View File

@ -23,7 +23,7 @@
#include <trace/events/f2fs.h>
static inline bool is_extension_exist(const unsigned char *s, const char *sub,
bool tmp_ext)
bool tmp_ext, bool tmp_dot)
{
size_t slen = strlen(s);
size_t sublen = strlen(sub);
@ -49,13 +49,27 @@ static inline bool is_extension_exist(const unsigned char *s, const char *sub,
for (i = 1; i < slen - sublen; i++) {
if (s[i] != '.')
continue;
if (!strncasecmp(s + i + 1, sub, sublen))
return true;
if (!strncasecmp(s + i + 1, sub, sublen)) {
if (!tmp_dot)
return true;
if (i == slen - sublen - 1 || s[i + 1 + sublen] == '.')
return true;
}
}
return false;
}
static inline bool is_temperature_extension(const unsigned char *s, const char *sub)
{
return is_extension_exist(s, sub, true, false);
}
static inline bool is_compress_extension(const unsigned char *s, const char *sub)
{
return is_extension_exist(s, sub, true, true);
}
int f2fs_update_extension_list(struct f2fs_sb_info *sbi, const char *name,
bool hot, bool set)
{
@ -148,7 +162,7 @@ static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
cold_count = le32_to_cpu(sbi->raw_super->extension_count);
hot_count = sbi->raw_super->hot_ext_count;
for (i = cold_count; i < cold_count + hot_count; i++)
if (is_extension_exist(name, extlist[i], false))
if (is_temperature_extension(name, extlist[i]))
break;
f2fs_up_read(&sbi->sb_lock);
if (i < (cold_count + hot_count))
@ -156,12 +170,12 @@ static void set_compress_new_inode(struct f2fs_sb_info *sbi, struct inode *dir,
/* Don't compress unallowed extension. */
for (i = 0; i < noext_cnt; i++)
if (is_extension_exist(name, noext[i], false))
if (is_compress_extension(name, noext[i]))
return;
/* Compress wanting extension. */
for (i = 0; i < ext_cnt; i++) {
if (is_extension_exist(name, ext[i], false)) {
if (is_compress_extension(name, ext[i])) {
set_compress_context(inode);
return;
}
@ -189,7 +203,7 @@ static void set_file_temperature(struct f2fs_sb_info *sbi, struct inode *inode,
cold_count = le32_to_cpu(sbi->raw_super->extension_count);
hot_count = sbi->raw_super->hot_ext_count;
for (i = 0; i < cold_count + hot_count; i++)
if (is_extension_exist(name, extlist[i], true))
if (is_temperature_extension(name, extlist[i]))
break;
f2fs_up_read(&sbi->sb_lock);