diff options
| author | Soumya Koduri <skoduri@redhat.com> | 2016-08-04 16:00:31 +0530 |
|---|---|---|
| committer | Raghavendra G <rgowdapp@redhat.com> | 2016-08-09 01:15:26 -0700 |
| commit | 567304eaa24c0715f8f5d8ca5c70ac9e2af3d2c8 (patch) | |
| tree | 1d0b681cd5a1fb9b77af51173345a92b705ce70a | |
| parent | 76401324af5a5e7dc3acf8d4fbe4884d6c3f0281 (diff) | |
inode: Adjust lru_size while retiring entries in lru list
As part of inode_table_destroy(), we first retire entries
in the lru list but the lru_size is not adjusted accordingly.
This may result in invalid memory reference in inode_table_prune
if the lru_size > lru_limit.
Change-Id: I29ee3c03b0eaa8a118d06dc0cefba85877daf963
BUG: 1364026
Signed-off-by: Soumya Koduri <skoduri@redhat.com>
Reviewed-on: http://review.gluster.org/15087
Smoke: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-by: Prashanth Pai <ppai@redhat.com>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
| -rw-r--r-- | libglusterfs/src/inode.c | 9 | ||||
| -rw-r--r-- | libglusterfs/src/libglusterfs-messages.h | 10 |
2 files changed, 18 insertions, 1 deletions
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c index 6e1234e9ce2..6e4c2f11bc2 100644 --- a/libglusterfs/src/inode.c +++ b/libglusterfs/src/inode.c @@ -1511,6 +1511,14 @@ inode_table_prune (inode_table_t *table) { while (table->lru_limit && table->lru_size > (table->lru_limit)) { + if (list_empty (&table->lru)) { + gf_msg_callingfn (THIS->name, GF_LOG_WARNING, 0, + LG_MSG_INVALID_INODE_LIST, + "Empty inode lru list found" + " but with (%d) lru_size", + table->lru_size); + break; + } entry = list_entry (table->lru.next, inode_t, list); @@ -1780,6 +1788,7 @@ inode_table_destroy (inode_table_t *inode_table) { inode_t, list); __inode_forget (trav, 0); __inode_retire (trav); + inode_table->lru_size--; } while (!list_empty (&inode_table->active)) { diff --git a/libglusterfs/src/libglusterfs-messages.h b/libglusterfs/src/libglusterfs-messages.h index d18f4cb3112..d2ad44e470e 100644 --- a/libglusterfs/src/libglusterfs-messages.h +++ b/libglusterfs/src/libglusterfs-messages.h @@ -36,7 +36,7 @@ */ #define GLFS_LG_BASE GLFS_MSGID_COMP_LIBGLUSTERFS -#define GLFS_LG_NUM_MESSAGES 206 +#define GLFS_LG_NUM_MESSAGES 207 #define GLFS_LG_MSGID_END (GLFS_LG_BASE + GLFS_LG_NUM_MESSAGES + 1) /* Messaged with message IDs */ #define glfs_msg_start_lg GLFS_LG_BASE, "Invalid: Start of messages" @@ -1762,6 +1762,14 @@ * @recommendedaction * */ +#define LG_MSG_INVALID_INODE_LIST (GLFS_LG_BASE + 207) + +/*! + * @messageid + * @diagnosis + * @recommendedaction + * + */ /*------------*/ #define glfs_msg_end_lg GLFS_LG_MSGID_END, "Invalid: End of messages" |