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Replace ASSERTV macro with compiler annotation

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Remove the ASSERTV macro and handle suppressing unused 
compiler warnings for variables only in ASSERTs using the 
__attribute__((unused)) compiler annotation.  The annotation
is understood by both gcc and clang.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9671
This commit is contained in:
Matthew Macy
2019-12-05 12:37:00 -08:00
committed by Brian Behlendorf
parent 12395c7b0b
commit 2a8ba608d3
28 changed files with 66 additions and 61 deletions
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module/os/linux/zfs/zfs_vnops.c
+3 -3
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@@ -706,9 +706,9 @@ zfs_write(struct inode *ip, uio_t *uio, int ioflag, cred_t *cr)
uint64_t end_size = MAX(zp->z_size, woff + n);
zilog_t *zilog = zfsvfs->z_log;
#ifdef HAVE_UIO_ZEROCOPY
int i_iov = 0;
const iovec_t *iovp = uio->uio_iov;
ASSERTV(int iovcnt = uio->uio_iovcnt);
int i_iov = 0;
const iovec_t *iovp = uio->uio_iov;
int iovcnt __maybe_unused = uio->uio_iovcnt;
#endif