diff options
| -rw-r--r-- | fs/exfat/fatent.c | 41 |
1 files changed, 17 insertions, 24 deletions
diff --git a/fs/exfat/fatent.c b/fs/exfat/fatent.c index a3464e56a7e1..04e1126ce971 100644 --- a/fs/exfat/fatent.c +++ b/fs/exfat/fatent.c @@ -6,6 +6,7 @@ #include <linux/slab.h> #include <asm/unaligned.h> #include <linux/buffer_head.h> +#include <linux/blkdev.h> #include "exfat_raw.h" #include "exfat_fs.h" @@ -274,10 +275,9 @@ int exfat_zeroed_cluster(struct inode *dir, unsigned int clu) { struct super_block *sb = dir->i_sb; struct exfat_sb_info *sbi = EXFAT_SB(sb); - struct buffer_head *bhs[MAX_BUF_PER_PAGE]; - int nr_bhs = MAX_BUF_PER_PAGE; + struct buffer_head *bh; sector_t blknr, last_blknr; - int err, i, n; + int i; blknr = exfat_cluster_to_sector(sbi, clu); last_blknr = blknr + sbi->sect_per_clus; @@ -291,30 +291,23 @@ int exfat_zeroed_cluster(struct inode *dir, unsigned int clu) } /* Zeroing the unused blocks on this cluster */ - while (blknr < last_blknr) { - 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; - } - memset(bhs[n]->b_data, 0, sb->s_blocksize); - } - - err = exfat_update_bhs(bhs, n, IS_DIRSYNC(dir)); - if (err) - goto release_bhs; + for (i = blknr; i < last_blknr; i++) { + bh = sb_getblk(sb, i); + if (!bh) + return -ENOMEM; - for (i = 0; i < n; i++) - brelse(bhs[i]); + memset(bh->b_data, 0, sb->s_blocksize); + set_buffer_uptodate(bh); + mark_buffer_dirty(bh); + brelse(bh); } - return 0; -release_bhs: - exfat_err(sb, "failed zeroed sect %llu\n", (unsigned long long)blknr); - for (i = 0; i < n; i++) - bforget(bhs[i]); - return err; + if (IS_DIRSYNC(dir)) + return sync_blockdev_range(sb->s_bdev, + EXFAT_BLK_TO_B(blknr, sb), + EXFAT_BLK_TO_B(last_blknr, sb) - 1); + + return 0; } int exfat_alloc_cluster(struct inode *inode, unsigned int num_alloc, |