Date: Sat, 29 Oct 2016 12:38:30 +0000 (UTC) From: Edward Tomasz Napierala <trasz@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r308088 - head/sys/kern Message-ID: <201610291238.u9TCcUSU086749@repo.freebsd.org>
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Author: trasz Date: Sat Oct 29 12:38:30 2016 New Revision: 308088 URL: https://svnweb.freebsd.org/changeset/base/308088 Log: Fix getfsstat(2) handling of flags. The 'flags' argument is an enum, not a bitfield. For the intended usage - being passed either MNT_WAIT, or MNT_NOWAIT - this shouldn't introduce any changes in behaviour. Reviewed by: jhb@ MFC after: 1 month Differential Revision: https://reviews.freebsd.org/D8373 Modified: head/sys/kern/vfs_syscalls.c Modified: head/sys/kern/vfs_syscalls.c ============================================================================== --- head/sys/kern/vfs_syscalls.c Sat Oct 29 08:57:35 2016 (r308087) +++ head/sys/kern/vfs_syscalls.c Sat Oct 29 12:38:30 2016 (r308088) @@ -495,16 +495,16 @@ kern_getfsstat(struct thread *td, struct sp->f_flags = mp->mnt_flag & MNT_VISFLAGMASK; /* * If MNT_NOWAIT or MNT_LAZY is specified, do not - * refresh the fsstat cache. MNT_NOWAIT or MNT_LAZY - * overrides MNT_WAIT. + * refresh the fsstat cache. */ - if (((flags & (MNT_LAZY|MNT_NOWAIT)) == 0 || - (flags & MNT_WAIT)) && - (error = VFS_STATFS(mp, sp))) { - mtx_lock(&mountlist_mtx); - nmp = TAILQ_NEXT(mp, mnt_list); - vfs_unbusy(mp); - continue; + if (flags != MNT_LAZY && flags != MNT_NOWAIT) { + error = VFS_STATFS(mp, sp); + if (error != 0) { + mtx_lock(&mountlist_mtx); + nmp = TAILQ_NEXT(mp, mnt_list); + vfs_unbusy(mp); + continue; + } } if (priv_check(td, PRIV_VFS_GENERATION)) { bcopy(sp, &sb, sizeof(sb));
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