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| author |   Tetsuhiro Kohada <kohada.t2@gmail.com> | 2020-06-23 15:22:19 +0900 |
|---|---|---|
| committer |   Namjae Jeon <namjae.jeon@samsung.com> | 2020-08-12 08:31:11 +0900 |
| commit | 3db3c3fb840ed4a6c7666d1464959edd40fe54f1 (patch) | |
| tree | 930c8f0f2b33efc5752dc8587a3ca669af716591 /fs/exfat | |
| parent | exfat: remove EXFAT_SB_DIRTY flag (diff) | |
| download | linux-dev-3db3c3fb840ed4a6c7666d1464959edd40fe54f1.tar.xz linux-dev-3db3c3fb840ed4a6c7666d1464959edd40fe54f1.zip | |
exfat: write multiple sectors at once
Write multiple sectors at once when updating dir-entries.
Add exfat_update_bhs() for that. It wait for write completion once
instead of sector by sector.
It's only effective if sync enabled.
Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Diffstat (limited to 'fs/exfat')
| -rw-r--r-- | fs/exfat/dir.c | 15 | ||||
| -rw-r--r-- | fs/exfat/exfat_fs.h | 1 | ||||
| -rw-r--r-- | fs/exfat/misc.c | 19 |
3 files changed, 29 insertions, 6 deletions
diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c index 97296bc2b241..542f1a5ab56f 100644 --- a/fs/exfat/dir.c +++ b/fs/exfat/dir.c @@ -606,13 +606,16 @@ void exfat_update_dir_chksum_with_entry_set(struct exfat_entry_set_cache *es) void exfat_free_dentry_set(struct exfat_entry_set_cache *es, int sync) { - int i; + int i, err = 0; - for (i = 0; i < es->num_bh; i++) { - if (es->modified) - exfat_update_bh(es->bh[i], sync); - brelse(es->bh[i]); - } + if (es->modified) + err = exfat_update_bhs(es->bh, es->num_bh, sync); + + for (i = 0; i < es->num_bh; i++) + if (err) + bforget(es->bh[i]); + else + brelse(es->bh[i]); kfree(es); } diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h index 05553b2924ee..af0f526eece7 100644 --- a/fs/exfat/exfat_fs.h +++ b/fs/exfat/exfat_fs.h @@ -513,6 +513,7 @@ void exfat_set_entry_time(struct exfat_sb_info *sbi, struct timespec64 *ts, u16 exfat_calc_chksum16(void *data, int len, u16 chksum, int type); u32 exfat_calc_chksum32(void *data, int len, u32 chksum, int type); void exfat_update_bh(struct buffer_head *bh, int sync); +int exfat_update_bhs(struct buffer_head **bhs, int nr_bhs, int sync); void exfat_chain_set(struct exfat_chain *ec, unsigned int dir, unsigned int size, unsigned char flags); void exfat_chain_dup(struct exfat_chain *dup, struct exfat_chain *ec); diff --git a/fs/exfat/misc.c b/fs/exfat/misc.c index 8a3dde59052b..d34e6193258d 100644 --- a/fs/exfat/misc.c +++ b/fs/exfat/misc.c @@ -172,6 +172,25 @@ void exfat_update_bh(struct buffer_head *bh, int sync) sync_dirty_buffer(bh); } +int exfat_update_bhs(struct buffer_head **bhs, int nr_bhs, int sync) +{ + int i, err = 0; + + for (i = 0; i < nr_bhs; i++) { + set_buffer_uptodate(bhs[i]); + mark_buffer_dirty(bhs[i]); + if (sync) + write_dirty_buffer(bhs[i], 0); + } + + for (i = 0; i < nr_bhs && sync; i++) { + wait_on_buffer(bhs[i]); + if (!err && !buffer_uptodate(bhs[i])) + err = -EIO; + } + return err; +} + void exfat_chain_set(struct exfat_chain *ec, unsigned int dir, unsigned int size, unsigned char flags) { |