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authorLinus Torvalds <torvalds@linux-foundation.org>2022-04-02 00:20:24 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-04-02 00:20:24 +0300
commitec251f3e1851380f3e177e1559fc497843947e35 (patch)
tree9d809b622b83f72325e3ef05e89fe1b35f509a69 /fs/exfat/super.c
parentcda4351252e710507d32178dfbb5a7f0f92488f8 (diff)
parenta4a3d8c52d952ab1f5c8b8b67b57f2e01936628d (diff)
downloadlinux-ec251f3e1851380f3e177e1559fc497843947e35.tar.xz
Merge tag 'exfat-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon: - Add keep_last_dots mount option to allow access to paths with trailing dots - Avoid repetitive volume dirty bit set/clear to improve storage life time * tag 'exfat-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat: exfat: do not clear VolumeDirty in writeback exfat: allow access to paths with trailing dots
Diffstat (limited to 'fs/exfat/super.c')
-rw-r--r--fs/exfat/super.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 9f892903419a..8ca21e7917d1 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -100,7 +100,6 @@ static int exfat_set_vol_flags(struct super_block *sb, unsigned short new_flags)
{
struct exfat_sb_info *sbi = EXFAT_SB(sb);
struct boot_sector *p_boot = (struct boot_sector *)sbi->boot_bh->b_data;
- bool sync;
/* retain persistent-flags */
new_flags |= sbi->vol_flags_persistent;
@@ -119,16 +118,11 @@ static int exfat_set_vol_flags(struct super_block *sb, unsigned short new_flags)
p_boot->vol_flags = cpu_to_le16(new_flags);
- if ((new_flags & VOLUME_DIRTY) && !buffer_dirty(sbi->boot_bh))
- sync = true;
- else
- sync = false;
-
set_buffer_uptodate(sbi->boot_bh);
mark_buffer_dirty(sbi->boot_bh);
- if (sync)
- sync_dirty_buffer(sbi->boot_bh);
+ __sync_dirty_buffer(sbi->boot_bh, REQ_SYNC | REQ_FUA | REQ_PREFLUSH);
+
return 0;
}
@@ -174,6 +168,8 @@ static int exfat_show_options(struct seq_file *m, struct dentry *root)
seq_puts(m, ",errors=remount-ro");
if (opts->discard)
seq_puts(m, ",discard");
+ if (opts->keep_last_dots)
+ seq_puts(m, ",keep_last_dots");
if (opts->time_offset)
seq_printf(m, ",time_offset=%d", opts->time_offset);
return 0;
@@ -217,6 +213,7 @@ enum {
Opt_charset,
Opt_errors,
Opt_discard,
+ Opt_keep_last_dots,
Opt_time_offset,
/* Deprecated options */
@@ -243,6 +240,7 @@ static const struct fs_parameter_spec exfat_parameters[] = {
fsparam_string("iocharset", Opt_charset),
fsparam_enum("errors", Opt_errors, exfat_param_enums),
fsparam_flag("discard", Opt_discard),
+ fsparam_flag("keep_last_dots", Opt_keep_last_dots),
fsparam_s32("time_offset", Opt_time_offset),
__fsparam(NULL, "utf8", Opt_utf8, fs_param_deprecated,
NULL),
@@ -297,6 +295,9 @@ static int exfat_parse_param(struct fs_context *fc, struct fs_parameter *param)
case Opt_discard:
opts->discard = 1;
break;
+ case Opt_keep_last_dots:
+ opts->keep_last_dots = 1;
+ break;
case Opt_time_offset:
/*
* Make the limit 24 just in case someone invents something