diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/disk-io.c | 2 | ||||
| -rw-r--r-- | fs/btrfs/free-space-cache.c | 2 | ||||
| -rw-r--r-- | fs/gfs2/glock.c | 7 | ||||
| -rw-r--r-- | fs/nsfs.c | 29 |
4 files changed, 32 insertions, 8 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index a8ecccfc36de..5da18ebc9222 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -30,6 +30,7 @@ #include <linux/ratelimit.h> #include <linux/uuid.h> #include <linux/semaphore.h> +#include <linux/bpf.h> #include <asm/unaligned.h> #include "ctree.h" #include "disk-io.h" @@ -3123,6 +3124,7 @@ recovery_tree_root: goto fail_block_groups; goto retry_root_backup; } +BPF_ALLOW_ERROR_INJECTION(open_ctree); static void btrfs_end_buffer_write_sync(struct buffer_head *bh, int uptodate) { diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 4426d1c73e50..fb1382893bfc 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -22,6 +22,7 @@ #include <linux/slab.h> #include <linux/math64.h> #include <linux/ratelimit.h> +#include <linux/bpf.h> #include "ctree.h" #include "free-space-cache.h" #include "transaction.h" @@ -332,6 +333,7 @@ static int io_ctl_init(struct btrfs_io_ctl *io_ctl, struct inode *inode, return 0; } +BPF_ALLOW_ERROR_INJECTION(io_ctl_init); static void io_ctl_free(struct btrfs_io_ctl *io_ctl) { diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index 11066d8647d2..90af87ff29ba 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -1549,16 +1549,13 @@ static void glock_hash_walk(glock_examiner examiner, const struct gfs2_sbd *sdp) rhashtable_walk_enter(&gl_hash_table, &iter); do { - gl = ERR_PTR(rhashtable_walk_start(&iter)); - if (IS_ERR(gl)) - goto walk_stop; + rhashtable_walk_start(&iter); while ((gl = rhashtable_walk_next(&iter)) && !IS_ERR(gl)) if (gl->gl_name.ln_sbd == sdp && lockref_get_not_dead(&gl->gl_lockref)) examiner(gl); -walk_stop: rhashtable_walk_stop(&iter); } while (cond_resched(), gl == ERR_PTR(-EAGAIN)); @@ -1947,7 +1944,7 @@ static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos) loff_t n = *pos; rhashtable_walk_enter(&gl_hash_table, &gi->hti); - if (rhashtable_walk_start(&gi->hti) != 0) + if (rhashtable_walk_start_check(&gi->hti) != 0) return NULL; do { diff --git a/fs/nsfs.c b/fs/nsfs.c index 7c6f76d29f56..36b0772701a0 100644 --- a/fs/nsfs.c +++ b/fs/nsfs.c @@ -103,14 +103,14 @@ slow: goto got_it; } -void *ns_get_path(struct path *path, struct task_struct *task, - const struct proc_ns_operations *ns_ops) +void *ns_get_path_cb(struct path *path, ns_get_path_helper_t *ns_get_cb, + void *private_data) { struct ns_common *ns; void *ret; again: - ns = ns_ops->get(task); + ns = ns_get_cb(private_data); if (!ns) return ERR_PTR(-ENOENT); @@ -120,6 +120,29 @@ again: return ret; } +struct ns_get_path_task_args { + const struct proc_ns_operations *ns_ops; + struct task_struct *task; +}; + +static struct ns_common *ns_get_path_task(void *private_data) +{ + struct ns_get_path_task_args *args = private_data; + + return args->ns_ops->get(args->task); +} + +void *ns_get_path(struct path *path, struct task_struct *task, + const struct proc_ns_operations *ns_ops) +{ + struct ns_get_path_task_args args = { + .ns_ops = ns_ops, + .task = task, + }; + + return ns_get_path_cb(path, ns_get_path_task, &args); +} + int open_related_ns(struct ns_common *ns, struct ns_common *(*get_ns)(struct ns_common *ns)) { |