From: Sasha Levin <sashal@kernel.org>
To: stable@vger.kernel.org
Cc: Namjae Jeon <linkinjeon@kernel.org>,
Christoph Hellwig <hch@lst.de>,
"Darrick J. Wong" <djwong@kernel.org>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 7.1.y 2/5] exfat: add balloc parameter to exfat_map_cluster() for iomap support
Date: Tue, 21 Jul 2026 07:46:53 -0400 [thread overview]
Message-ID: <20260721114656.3687966-2-sashal@kernel.org> (raw)
In-Reply-To: <20260721114656.3687966-1-sashal@kernel.org>
From: Namjae Jeon <linkinjeon@kernel.org>
[ Upstream commit 3474416bb9abafca2e79b7ff700a100b7e8bc766 ]
In preparation for supporting the iomap infrastructure, we need to know
whether a new cluster was allocated or not in exfat_map_cluster().
Add an optional 'bool *balloc' output parameter. When a new cluster is
allocated, *balloc is set to true. Pass NULL from exfat_get_block() to
preserve the existing behavior.
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Stable-dep-of: 044472d5ee7d ("iomap: consolidate bio submission")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/exfat/inode.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/fs/exfat/inode.c b/fs/exfat/inode.c
index 249a35e2b4b237..a10d4f3c66a178 100644
--- a/fs/exfat/inode.c
+++ b/fs/exfat/inode.c
@@ -124,7 +124,8 @@ void exfat_sync_inode(struct inode *inode)
* *clu = (~0), if it's unable to allocate a new cluster
*/
static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
- unsigned int *clu, unsigned int *count, int create)
+ unsigned int *clu, unsigned int *count, int create,
+ bool *balloc)
{
int ret;
unsigned int last_clu;
@@ -229,6 +230,8 @@ static int exfat_map_cluster(struct inode *inode, unsigned int clu_offset,
if (exfat_cluster_walk(sb, clu, num_to_be_allocated - 1, ei->flags))
return -EIO;
*count = 1;
+ if (balloc)
+ *balloc = true;
}
/* hint information */
@@ -262,7 +265,7 @@ static int exfat_get_block(struct inode *inode, sector_t iblock,
/* Is this block already allocated? */
count = exfat_bytes_to_cluster_round_up(sbi, bh_result->b_size);
err = exfat_map_cluster(inode, iblock >> sbi->sect_per_clus_bits,
- &cluster, &count, create);
+ &cluster, &count, create, NULL);
if (err) {
if (err != -ENOSPC)
exfat_fs_error_ratelimit(sb,
--
2.53.0
next prev parent reply other threads:[~2026-07-21 11:46 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-15 14:40 FAILED: patch "[PATCH] iomap: consolidate bio submission" failed to apply to 7.1-stable tree gregkh
2026-07-21 11:46 ` [PATCH 7.1.y 1/5] exfat: replace unsafe macros with static inline functions Sasha Levin
2026-07-21 11:46 ` Sasha Levin [this message]
2026-07-21 11:46 ` [PATCH 7.1.y 3/5] exfat: add data_start_bytes and exfat_cluster_to_phys_bytes() helper Sasha Levin
2026-07-21 11:46 ` [PATCH 7.1.y 4/5] exfat: fix implicit declaration of brelse() Sasha Levin
2026-07-21 11:46 ` [PATCH 7.1.y 5/5] iomap: consolidate bio submission Sasha Levin
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