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authorJakub Kicinski <kuba@kernel.org>2023-01-20 23:28:23 +0300
committerJakub Kicinski <kuba@kernel.org>2023-01-20 23:28:23 +0300
commitb3c588cd553d6996cc97f3dc0a7081b9a9b36b48 (patch)
tree37e51018ad3f74bf91a7b4a54a0893d048440bd1 /fs/erofs/zmap.c
parent7a590bd6b42ffa12b16956f37742cc04ec15545e (diff)
parent5deaa98587aca2f0e7605388e89cfa1df4bad5cb (diff)
downloadlinux-b3c588cd553d6996cc97f3dc0a7081b9a9b36b48.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ipa/ipa_interrupt.c drivers/net/ipa/ipa_interrupt.h 9ec9b2a30853 ("net: ipa: disable ipa interrupt during suspend") 8e461e1f092b ("net: ipa: introduce ipa_interrupt_enable()") d50ed3558719 ("net: ipa: enable IPA interrupt handlers separate from registration") https://lore.kernel.org/all/20230119114125.5182c7ab@canb.auug.org.au/ https://lore.kernel.org/all/79e46152-8043-a512-79d9-c3b905462774@tessares.net/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'fs/erofs/zmap.c')
-rw-r--r--fs/erofs/zmap.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/erofs/zmap.c b/fs/erofs/zmap.c
index 0150570c33aa..98fb90b9af71 100644
--- a/fs/erofs/zmap.c
+++ b/fs/erofs/zmap.c
@@ -793,12 +793,16 @@ static int z_erofs_iomap_begin_report(struct inode *inode, loff_t offset,
iomap->type = IOMAP_HOLE;
iomap->addr = IOMAP_NULL_ADDR;
/*
- * No strict rule how to describe extents for post EOF, yet
- * we need do like below. Otherwise, iomap itself will get
+ * No strict rule on how to describe extents for post EOF, yet
+ * we need to do like below. Otherwise, iomap itself will get
* into an endless loop on post EOF.
+ *
+ * Calculate the effective offset by subtracting extent start
+ * (map.m_la) from the requested offset, and add it to length.
+ * (NB: offset >= map.m_la always)
*/
if (iomap->offset >= inode->i_size)
- iomap->length = length + map.m_la - offset;
+ iomap->length = length + offset - map.m_la;
}
iomap->flags = 0;
return 0;