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authorLi Dongyang <[email protected]>2016-03-30 19:48:44 -0400
committerGreg Kroah-Hartman <[email protected]>2016-03-30 21:38:13 -0700
commit902a34ad7242bb50e467a24855b544148989daf4 (patch)
treec75cb85d699997bde845ee318626e18e95e97a81
parentd37dd10b71fd304289560901e81eddbe7defb351 (diff)
staging/lustre/llite: make sure we do cl_page_clip on the last page
When we are doing a partial IO on both first and last page, the logic currently only call cl_page_clip on the first page, which will end up with a incorrect i_size. Signed-off-by: Li Dongyang <[email protected]> Reviewed-on: http://review.whamcloud.com/11630 Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5552 Reviewed-by: Ian Costello <[email protected]> Reviewed-by: Niu Yawei <[email protected]> Reviewed-by: Li Xi <[email protected]> Reviewed-by: Jinshan Xiong <[email protected]> Signed-off-by: Oleg Drokin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
-rw-r--r--drivers/staging/lustre/lustre/llite/vvp_io.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/staging/lustre/lustre/llite/vvp_io.c b/drivers/staging/lustre/lustre/llite/vvp_io.c
index e44ef21b795e..1d2fc3bf9487 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_io.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_io.c
@@ -599,12 +599,14 @@ static int vvp_io_commit_sync(const struct lu_env *env, struct cl_io *io,
page = cl_page_list_first(plist);
if (plist->pl_nr == 1) {
cl_page_clip(env, page, from, to);
- } else if (from > 0) {
- cl_page_clip(env, page, from, PAGE_SIZE);
} else {
- page = cl_page_list_last(plist);
- cl_page_clip(env, page, 0, to);
- }
+ if (from > 0)
+ cl_page_clip(env, page, from, PAGE_SIZE);
+ if (to != PAGE_SIZE) {
+ page = cl_page_list_last(plist);
+ cl_page_clip(env, page, 0, to);
+ }
+ }
}
cl_2queue_init(queue);