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Update zerocopy patch to be consistent with new flags arg 

passed to dmu_read().  It would be nice to have one of these
for dmu_write() as well but we have do without for now.
This commit is contained in:
Brian Behlendorf 2009-07-06 16:01:41 -07:00
parent 9120dc8579
commit 1175906fbc
2 changed files with 11 additions and 19 deletions
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22
module/zfs/dmu.c
View File

@ -601,13 +601,6 @@ dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
return (err); return (err);
} }
int
dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
void *buf)
{
return dmu_read_impl(os, object, offset, size, buf, 0);
}
void void
dmu_write_impl(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, dmu_write_impl(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
const void *buf, dmu_tx_t *tx, int flags) const void *buf, dmu_tx_t *tx, int flags)
@ -651,6 +644,13 @@ dmu_write_impl(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
dmu_buf_rele_array(dbp, numbufs, FTAG); dmu_buf_rele_array(dbp, numbufs, FTAG);
} }
void
dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
const void *buf, dmu_tx_t *tx)
{
dmu_write_impl(os, object, offset, size, buf, tx, 0);
}
void void
dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
dmu_tx_t *tx) dmu_tx_t *tx)
@ -672,13 +672,6 @@ dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
dmu_buf_rele_array(dbp, numbufs, FTAG); dmu_buf_rele_array(dbp, numbufs, FTAG);
} }
void
dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
const void *buf, dmu_tx_t *tx)
{
dmu_write_impl(os, object, offset, size, buf, tx, 0);
}
#ifdef _KERNEL #ifdef _KERNEL
int int
dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size) dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size)
@ -1299,7 +1292,6 @@ dmu_fini(void)
#if defined(_KERNEL) && defined(HAVE_SPL) #if defined(_KERNEL) && defined(HAVE_SPL)
EXPORT_SYMBOL(dmu_bonus_hold); EXPORT_SYMBOL(dmu_bonus_hold);
EXPORT_SYMBOL(dmu_free_range); EXPORT_SYMBOL(dmu_free_range);
EXPORT_SYMBOL(dmu_read_impl);
EXPORT_SYMBOL(dmu_read); EXPORT_SYMBOL(dmu_read);
EXPORT_SYMBOL(dmu_write_impl); EXPORT_SYMBOL(dmu_write_impl);
EXPORT_SYMBOL(dmu_write); EXPORT_SYMBOL(dmu_write);

8
module/zfs/include/sys/dmu.h
View File

@ -156,10 +156,8 @@ void zfs_znode_byteswap(void *buf, size_t size);
* The maximum number of bytes that can be accessed as part of one * The maximum number of bytes that can be accessed as part of one
* operation, including metadata. * operation, including metadata.
*/ */
#define DMU_MAX_ACCESS (10<<20) /* 10MB */ #define DMU_MAX_ACCESS (10<<20) /* 10MB */
#define DMU_MAX_DELETEBLKCNT (20480) /* ~5MB of indirect blocks */ #define DMU_MAX_DELETEBLKCNT (20480) /* ~5MB of indirect blocks */
#define DMU_WRITE_ZEROCOPY 0x0001
#define DMU_READ_ZEROCOPY 0x0002
#define DMU_USERUSED_OBJECT (-1ULL) #define DMU_USERUSED_OBJECT (-1ULL)
#define DMU_GROUPUSED_OBJECT (-2ULL) #define DMU_GROUPUSED_OBJECT (-2ULL)
@ -481,6 +479,8 @@ int dmu_free_object(objset_t *os, uint64_t object);
*/ */
#define DMU_READ_PREFETCH 0 /* prefetch */ #define DMU_READ_PREFETCH 0 /* prefetch */
#define DMU_READ_NO_PREFETCH 1 /* don't prefetch */ #define DMU_READ_NO_PREFETCH 1 /* don't prefetch */
#define DMU_READ_ZEROCOPY 2 /* zerocopy on read (test) */
#define DMU_WRITE_ZEROCOPY 4 /* zerocopy on write (test) */
int dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, int dmu_read(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
void *buf, uint32_t flags); void *buf, uint32_t flags);
void dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size, void dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,