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Suppress AIO kmem warnings

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The new zpl_aio_write() and zpl_aio_read() functions use kmem_alloc()
to allocate enough memory to hold the vectorized IO.  While this
allocation will be small it's been observed in practice to sometimes
slightly exceed the 8K warning threshold by a few kilobytes.
Therefore, the KM_NODEBUG flag has been added to suppress warning.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Yao <ryao@gentoo.org>
Closes #2774
This commit is contained in:
Brian Behlendorf 2014-10-08 17:10:45 -07:00
parent d94fd5f0de
commit ba232d8aea
1 changed files with 2 additions and 2 deletions
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4
module/zfs/zpl_file.c
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@ -248,7 +248,7 @@ zpl_aio_read(struct kiocb *kiocb, const struct iovec *iovp,
size_t count = kiocb->ki_nbytes; size_t count = kiocb->ki_nbytes;
ssize_t read; ssize_t read;
size_t alloc_size = sizeof (struct iovec) * nr_segs; size_t alloc_size = sizeof (struct iovec) * nr_segs;
struct iovec *iov_tmp = kmem_alloc(alloc_size, KM_SLEEP); struct iovec *iov_tmp = kmem_alloc(alloc_size, KM_SLEEP | KM_NODEBUG);
bcopy(iovp, iov_tmp, alloc_size); bcopy(iovp, iov_tmp, alloc_size);
ASSERT(iovp); ASSERT(iovp);
@ -325,7 +325,7 @@ zpl_aio_write(struct kiocb *kiocb, const struct iovec *iovp,
size_t count = kiocb->ki_nbytes; size_t count = kiocb->ki_nbytes;
ssize_t wrote; ssize_t wrote;
size_t alloc_size = sizeof (struct iovec) * nr_segs; size_t alloc_size = sizeof (struct iovec) * nr_segs;
struct iovec *iov_tmp = kmem_alloc(alloc_size, KM_SLEEP); struct iovec *iov_tmp = kmem_alloc(alloc_size, KM_SLEEP | KM_NODEBUG);
bcopy(iovp, iov_tmp, alloc_size); bcopy(iovp, iov_tmp, alloc_size);
ASSERT(iovp); ASSERT(iovp);