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author | kib <kib@FreeBSD.org> | 2014-11-18 12:53:32 +0000 |
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committer | kib <kib@FreeBSD.org> | 2014-11-18 12:53:32 +0000 |
commit | e4b2ee7e2b8167b0254356fea784913422730087 (patch) | |
tree | 90629f2d3f2351fa1eca5e7a9a55006c51a375a9 /share/man/man9/store.9 | |
parent | 96205db8c06612ea266eacb9d710b26e6ec5d225 (diff) | |
download | FreeBSD-src-e4b2ee7e2b8167b0254356fea784913422730087.zip FreeBSD-src-e4b2ee7e2b8167b0254356fea784913422730087.tar.gz |
Merge the fueword(9) and casueword(9). In particular,
MFC r273783:
Add fueword(9) and casueword(9) functions.
MFC note: ia64 is handled like arm, with NO_FUEWORD define.
MFC r273784:
Replace some calls to fuword() by fueword() with proper error checking.
MFC r273785:
Convert kern_umtx.c to use fueword() and casueword().
MFC note: the sys__umtx_lock and sys__umtx_unlock syscalls are not
converted, they are removed from HEAD, and not used. The do_sem2*()
family is not yet merged to stable/10, corresponding chunk will be
merged after do_sem2* are committed.
MFC r273788 (by jkim):
Actually install casuword(9) to fix build.
MFC r273911:
Add type qualifier volatile to the base (userspace) address argument
of fuword(9) and suword(9).
Diffstat (limited to 'share/man/man9/store.9')
-rw-r--r-- | share/man/man9/store.9 | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/share/man/man9/store.9 b/share/man/man9/store.9 index d333eff..cc442f2 100644 --- a/share/man/man9/store.9 +++ b/share/man/man9/store.9 @@ -34,7 +34,7 @@ .\" .\" $FreeBSD$ .\" -.Dd October 5, 2009 +.Dd October 29, 2014 .Dt STORE 9 .Os .Sh NAME @@ -48,15 +48,15 @@ .In sys/time.h .In sys/systm.h .Ft int -.Fn subyte "void *base" "int byte" +.Fn subyte "volatile void *base" "int byte" .Ft int -.Fn suword "void *base" "long word" +.Fn suword "volatile void *base" "long word" .Ft int -.Fn suword16 "void *base" "int word" +.Fn suword16 "volatile void *base" "int word" .Ft int -.Fn suword32 "void *base" "int32_t word" +.Fn suword32 "volatile void *base" "int32_t word" .Ft int -.Fn suword64 "void *base" "int64_t word" +.Fn suword64 "volatile void *base" "int64_t word" .In sys/resourcevar.h .Ft int .Fn suswintr "void *base" "int word" @@ -64,6 +64,8 @@ The .Nm functions are designed to copy small amounts of data to user-space. +If write is successful, it is performed atomically. +The data written must be naturally aligned. .Pp The .Nm |