summaryrefslogtreecommitdiffstats
path: root/libglusterfs/src/fd.c
diff options
context:
space:
mode:
Diffstat (limited to 'libglusterfs/src/fd.c')
-rw-r--r--libglusterfs/src/fd.c63
1 files changed, 56 insertions, 7 deletions
diff --git a/libglusterfs/src/fd.c b/libglusterfs/src/fd.c
index 03e8f9394..36cc4d056 100644
--- a/libglusterfs/src/fd.c
+++ b/libglusterfs/src/fd.c
@@ -121,7 +121,7 @@ gf_fd_fdtable_alloc (void)
}
-fdentry_t *
+static fdentry_t *
__gf_fd_fdtable_get_all_fds (fdtable_t *fdtable, uint32_t *count)
{
fdentry_t *fdentries = NULL;
@@ -159,7 +159,7 @@ gf_fd_fdtable_get_all_fds (fdtable_t *fdtable, uint32_t *count)
}
-fdentry_t *
+static fdentry_t *
__gf_fd_fdtable_copy_all_fds (fdtable_t *fdtable, uint32_t *count)
{
fdentry_t *fdentries = NULL;
@@ -513,6 +513,11 @@ fd_destroy (fd_t *fd)
LOCK_DESTROY (&fd->lock);
GF_FREE (fd->_ctx);
+ LOCK (&fd->inode->lock);
+ {
+ fd->inode->fd_count--;
+ }
+ UNLOCK (&fd->inode->lock);
inode_unref (fd->inode);
fd->inode = (inode_t *)0xaaaaaaaa;
fd_lk_ctx_unref (fd->lk_ctx);
@@ -552,6 +557,7 @@ __fd_bind (fd_t *fd)
{
list_del_init (&fd->inode_list);
list_add (&fd->inode_list, &fd->inode->fd_list);
+ fd->inode->fd_count++;
return fd;
}
@@ -659,6 +665,12 @@ __fd_lookup (inode_t *inode, uint64_t pid)
list_for_each_entry (iter_fd, &inode->fd_list, inode_list) {
+ if (iter_fd->anonymous)
+ /* If someone was interested in getting an
+ anonymous fd (or was OK getting an anonymous fd),
+ they can as well call fd_anonymous() directly */
+ continue;
+
if (!pid || iter_fd->pid == pid) {
fd = __fd_ref (iter_fd);
break;
@@ -707,24 +719,44 @@ fd_lookup_uint64 (inode_t *inode, uint64_t pid)
return fd;
}
+static fd_t *
+__fd_lookup_anonymous (inode_t *inode)
+{
+ fd_t *iter_fd = NULL;
+ fd_t *fd = NULL;
+
+ if (list_empty (&inode->fd_list))
+ return NULL;
-fd_t *
+ list_for_each_entry (iter_fd, &inode->fd_list, inode_list) {
+ if (iter_fd->anonymous) {
+ fd = __fd_ref (iter_fd);
+ break;
+ }
+ }
+
+ return fd;
+}
+
+static fd_t *
__fd_anonymous (inode_t *inode)
{
fd_t *fd = NULL;
- fd = __fd_lookup (inode, (uint64_t)-1);
+ fd = __fd_lookup_anonymous (inode);
/* if (fd); then we already have increased the refcount in
- __fd_lookup(), so no need of one more fd_ref().
+ __fd_lookup_anonymous(), so no need of one more fd_ref().
if (!fd); then both create and bind wont bump up the ref
count, so we have to call fd_ref() after bind. */
if (!fd) {
- fd = __fd_create (inode, (uint64_t)-1);
+ fd = __fd_create (inode, 0);
if (!fd)
return NULL;
+ fd->anonymous = _gf_true;
+
__fd_bind (fd);
__fd_ref (fd);
@@ -748,11 +780,28 @@ fd_anonymous (inode_t *inode)
return fd;
}
+fd_t*
+fd_lookup_anonymous (inode_t *inode)
+{
+ fd_t *fd = NULL;
+
+ if (!inode) {
+ gf_log_callingfn ("fd", GF_LOG_WARNING, "!inode");
+ return NULL;
+ }
+
+ LOCK (&inode->lock);
+ {
+ fd = __fd_lookup_anonymous (inode);
+ }
+ UNLOCK (&inode->lock);
+ return fd;
+}
gf_boolean_t
fd_is_anonymous (fd_t *fd)
{
- return (fd && fd->pid == -1);
+ return (fd && fd->anonymous);
}