Date: Sun, 5 Feb 2017 01:40:27 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r313260 - head/sys/kern Message-ID: <201702050140.v151eRXX090326@repo.freebsd.org>
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Author: mjg Date: Sun Feb 5 01:40:27 2017 New Revision: 313260 URL: https://svnweb.freebsd.org/changeset/base/313260 Log: fd: switch fget_unlocked to atomic_fcmpset Modified: head/sys/kern/kern_descrip.c Modified: head/sys/kern/kern_descrip.c ============================================================================== --- head/sys/kern/kern_descrip.c Sun Feb 5 01:20:39 2017 (r313259) +++ head/sys/kern/kern_descrip.c Sun Feb 5 01:40:27 2017 (r313260) @@ -2569,8 +2569,8 @@ fget_unlocked(struct filedesc *fdp, int if (error != 0) return (error); #endif - retry: count = fp->f_count; + retry: if (count == 0) { /* * Force a reload. Other thread could reallocate the @@ -2584,7 +2584,7 @@ fget_unlocked(struct filedesc *fdp, int * Use an acquire barrier to force re-reading of fdt so it is * refreshed for verification. */ - if (atomic_cmpset_acq_int(&fp->f_count, count, count + 1) == 0) + if (atomic_fcmpset_acq_int(&fp->f_count, &count, count + 1) == 0) goto retry; fdt = fdp->fd_files; #ifdef CAPABILITIES
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