diff options
| author | Tetsuhiro Kohada <kohada.t2@gmail.com> | 2020-06-24 11:30:40 +0900 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2020-08-12 08:31:12 +0900 |
| commit | 4dc7d35e09ba78aa0a3bcaa9fad1c19952e018a7 (patch) | |
| tree | c17f8dded2c98f851566c48050f7ca5ba163f422 /fs/exfat | |
| parent | 8b0c471773819c8201dc0b0123e1580639ee1570 (diff) | |
| download | lwn-4dc7d35e09ba78aa0a3bcaa9fad1c19952e018a7.tar.gz lwn-4dc7d35e09ba78aa0a3bcaa9fad1c19952e018a7.zip | |
exfat: optimize exfat_zeroed_cluster()
Replace part of exfat_zeroed_cluster() with exfat_update_bhs().
And remove exfat_sync_bhs().
Signed-off-by: Tetsuhiro Kohada <kohada.t2@gmail.com>
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Diffstat (limited to 'fs/exfat')
| -rw-r--r-- | fs/exfat/fatent.c | 53 |
1 files changed, 10 insertions, 43 deletions
diff --git a/fs/exfat/fatent.c b/fs/exfat/fatent.c index 82ee8246c080..c3c9afee7418 100644 --- a/fs/exfat/fatent.c +++ b/fs/exfat/fatent.c @@ -229,21 +229,6 @@ int exfat_find_last_cluster(struct super_block *sb, struct exfat_chain *p_chain, return 0; } -static inline int exfat_sync_bhs(struct buffer_head **bhs, int nr_bhs) -{ - int i, err = 0; - - for (i = 0; i < nr_bhs; i++) - write_dirty_buffer(bhs[i], 0); - - for (i = 0; i < nr_bhs; i++) { - wait_on_buffer(bhs[i]); - if (!err && !buffer_uptodate(bhs[i])) - err = -EIO; - } - return err; -} - int exfat_zeroed_cluster(struct inode *dir, unsigned int clu) { struct super_block *sb = dir->i_sb; @@ -265,41 +250,23 @@ int exfat_zeroed_cluster(struct inode *dir, unsigned int clu) } /* Zeroing the unused blocks on this cluster */ - n = 0; while (blknr < last_blknr) { - bhs[n] = sb_getblk(sb, blknr); - if (!bhs[n]) { - err = -ENOMEM; - goto release_bhs; - } - memset(bhs[n]->b_data, 0, sb->s_blocksize); - exfat_update_bh(bhs[n], 0); - - n++; - blknr++; - - if (n == nr_bhs) { - if (IS_DIRSYNC(dir)) { - err = exfat_sync_bhs(bhs, n); - if (err) - goto release_bhs; + for (n = 0; n < nr_bhs && blknr < last_blknr; n++, blknr++) { + bhs[n] = sb_getblk(sb, blknr); + if (!bhs[n]) { + err = -ENOMEM; + goto release_bhs; } - - for (i = 0; i < n; i++) - brelse(bhs[i]); - n = 0; + memset(bhs[n]->b_data, 0, sb->s_blocksize); } - } - if (IS_DIRSYNC(dir)) { - err = exfat_sync_bhs(bhs, n); + err = exfat_update_bhs(bhs, n, IS_DIRSYNC(dir)); if (err) goto release_bhs; - } - - for (i = 0; i < n; i++) - brelse(bhs[i]); + for (i = 0; i < n; i++) + brelse(bhs[i]); + } return 0; release_bhs: |