diff options
| author | Steve Siwinski <ssiwinski@atto.com> | 2025-05-08 23:01:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-22 15:12:22 +0300 |
| commit | c682a193447a0f2743b3192a9dfe1272dcc98f31 (patch) | |
| tree | 79bd06811e507dc529176efa165e0448e68e593f /include | |
| parent | a1546ec7e049888db0cb708345313fee7e6971a8 (diff) | |
| download | linux-c682a193447a0f2743b3192a9dfe1272dcc98f31.tar.xz | |
scsi: sd_zbc: block: Respect bio vector limits for REPORT ZONES buffer
commit e8007fad5457ea547ca63bb011fdb03213571c7e upstream.
The REPORT ZONES buffer size is currently limited by the HBA's maximum
segment count to ensure the buffer can be mapped. However, the block
layer further limits the number of iovec entries to 1024 when allocating
a bio.
To avoid allocation of buffers too large to be mapped, further restrict
the maximum buffer size to BIO_MAX_INLINE_VECS.
Replace the UIO_MAXIOV symbolic name with the more contextually
appropriate BIO_MAX_INLINE_VECS.
Fixes: b091ac616846 ("sd_zbc: Fix report zones buffer allocation")
Cc: stable@vger.kernel.org
Signed-off-by: Steve Siwinski <ssiwinski@atto.com>
Link: https://lore.kernel.org/r/20250508200122.243129-1-ssiwinski@atto.com
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/bio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/bio.h b/include/linux/bio.h index 0286bada25ce..b893418c3cc0 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -11,6 +11,7 @@ #include <linux/uio.h> #define BIO_MAX_VECS 256U +#define BIO_MAX_INLINE_VECS UIO_MAXIOV struct queue_limits; |