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8f1b7a6fa6
If the underlying device doesn't have a write-back cache, the kernel will just return a successful response. This doesn't hurt anything, but it's extra work on the IO taskqs that are unnecessary. So, detect this when we open the device for the first time. Sponsored-by: Klara, Inc. Sponsored-by: Wasabi Technology, Inc. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Rob Norris <rob.norris@klarasystems.com> Closes #16148 |
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| .. | ||
| blkdev_compat.h | ||
| compiler_compat.h | ||
| dcache_compat.h | ||
| kmap_compat.h | ||
| mm_compat.h | ||
| mod_compat.h | ||
| page_compat.h | ||
| percpu_compat.h | ||
| simd_aarch64.h | ||
| simd_arm.h | ||
| simd_powerpc.h | ||
| simd_x86.h | ||
| simd.h | ||
| utsname_compat.h | ||
| vfs_compat.h | ||
| xattr_compat.h | ||