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Revert "Temporarily disable Direct IO by default"

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This partially reverts commit 41210597.  Now that b4e4cbeb2 has
been merged Direct IO can be enabled by default for Linux, but
for FreeBSD there still remains a potentially insufficient range
locking in zfs_getpages() which needs to be resolved.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #16629
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Brian Behlendorf 2024-10-12 13:51:35 -07:00 committed by GitHub
parent 48dfe39747
commit c642e985e5
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7
module/zfs/zfs_vnops.c
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@ -77,8 +77,15 @@ static int zfs_bclone_wait_dirty = 0;
* Enable Direct I/O. If this setting is 0, then all I/O requests will be
* directed through the ARC acting as though the dataset property direct was
* set to disabled.
*
* Disabled by default on FreeBSD until a potential range locking issue in
* zfs_getpages() can be resolved.
*/
#ifdef __FreeBSD__
static int zfs_dio_enabled = 0;
#else
static int zfs_dio_enabled = 1;
#endif
/*