diff options
Diffstat (limited to 'fs/exfat/dir.c')
-rw-r--r-- | fs/exfat/dir.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/fs/exfat/dir.c b/fs/exfat/dir.c index 30d0ac43b66c..03e9c9e3966e 100644 --- a/fs/exfat/dir.c +++ b/fs/exfat/dir.c @@ -615,6 +615,10 @@ int exfat_free_dentry_set(struct exfat_entry_set_cache *es, int sync) bforget(es->bh[i]); else brelse(es->bh[i]); + + if (IS_DYNAMIC_ES(es)) + kfree(es->bh); + kfree(es); return err; } @@ -847,6 +851,7 @@ struct exfat_entry_set_cache *exfat_get_dentry_set(struct super_block *sb, /* byte offset in sector */ off = EXFAT_BLK_OFFSET(byte_offset, sb); es->start_off = off; + es->bh = es->__bh; /* sector offset in cluster */ sec = EXFAT_B_TO_BLK(byte_offset, sb); @@ -866,6 +871,16 @@ struct exfat_entry_set_cache *exfat_get_dentry_set(struct super_block *sb, es->num_entries = num_entries; num_bh = EXFAT_B_TO_BLK_ROUND_UP(off + num_entries * DENTRY_SIZE, sb); + if (num_bh > ARRAY_SIZE(es->__bh)) { + es->bh = kmalloc_array(num_bh, sizeof(*es->bh), GFP_KERNEL); + if (!es->bh) { + brelse(bh); + kfree(es); + return NULL; + } + es->bh[0] = bh; + } + for (i = 1; i < num_bh; i++) { /* get the next sector */ if (exfat_is_last_sector_in_cluster(sbi, sec)) { |