diff options
| author |   Jack Steiner <steiner@sgi.com> | 2009-12-15 16:48:14 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:16 -0800 |
| commit | 9c13cb331f7054d537d4caa094d3ebbba544833a (patch) | |
| tree | 7703c6eaa59065656eb7bede772b0dfd84cebd0d /drivers/misc | |
| parent | gru: fix bug in exception handling (diff) | |
| download | linux-dev-9c13cb331f7054d537d4caa094d3ebbba544833a.tar.xz linux-dev-9c13cb331f7054d537d4caa094d3ebbba544833a.zip | |
gru: add symbolic names for GRU error code
Use symbol names instead of numbers for error return values for the vtop
functions.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/sgi-gru/grufault.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index a1b3a1d66af5..3e644042c805 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -40,6 +40,12 @@ #include "gru_instructions.h" #include <asm/uv/uv_hub.h> +/* Return codes for vtop functions */ +#define VTOP_SUCCESS 0 +#define VTOP_INVALID -1 +#define VTOP_RETRY -2 + + /* * Test if a physical address is a valid GRU GSEG address */ @@ -280,12 +286,12 @@ static int gru_vtop(struct gru_thread_state *gts, unsigned long vaddr, paddr = paddr & ~((1UL << ps) - 1); *gpa = uv_soc_phys_ram_to_gpa(paddr); *pageshift = ps; - return 0; + return VTOP_SUCCESS; inval: - return -1; + return VTOP_INVALID; upm: - return -2; + return VTOP_RETRY; } @@ -412,9 +418,9 @@ static int gru_try_dropin(struct gru_thread_state *gts, goto failactive; ret = gru_vtop(gts, vaddr, write, atomic, &gpa, &pageshift); - if (ret == -1) + if (ret == VTOP_INVALID) goto failinval; - if (ret == -2) + if (ret == VTOP_RETRY) goto failupm; if (!(gts->ts_sizeavail & GRU_SIZEAVAIL(pageshift))) { |