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authorJaegeuk Kim2023-06-06 10:17:47 -0700
committerJaegeuk Kim2023-06-26 06:21:41 -0700
commit2724daf6c24c58099a758d1e842d39b10133b065 (patch)
tree4f70f6778a70d86b811863f2100e0717e0847fab /fs/f2fs
parent6201c478dedcf7c50361b23b5c4d4f41a68921ac (diff)
f2fs: compress tmp files given extension
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>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/namei.c28
1 files changed, 21 insertions, 7 deletions
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 3e35eb7dbb8f..ff89de115272 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -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);