diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/bio.c | 5 | ||||
| -rw-r--r-- | fs/exec.c | 10 | ||||
| -rw-r--r-- | fs/exportfs/expfs.c | 4 | ||||
| -rw-r--r-- | fs/ext4/balloc.c | 4 | ||||
| -rw-r--r-- | fs/inotify.c | 2 | ||||
| -rw-r--r-- | fs/proc/base.c | 2 | ||||
| -rw-r--r-- | fs/proc/task_mmu.c | 4 | ||||
| -rw-r--r-- | fs/seq_file.c | 14 |
8 files changed, 37 insertions, 8 deletions
@@ -26,8 +26,11 @@ #include <linux/mempool.h> #include <linux/workqueue.h> #include <linux/blktrace_api.h> +#include <trace/block.h> #include <scsi/sg.h> /* for struct sg_iovec */ +DEFINE_TRACE(block_split); + static struct kmem_cache *bio_slab __read_mostly; static mempool_t *bio_split_pool __read_mostly; @@ -1263,7 +1266,7 @@ struct bio_pair *bio_split(struct bio *bi, int first_sectors) if (!bp) return bp; - blk_add_trace_pdu_int(bdev_get_queue(bi->bi_bdev), BLK_TA_SPLIT, bi, + trace_block_split(bdev_get_queue(bi->bi_bdev), bi, bi->bi_sector + first_sectors); BUG_ON(bi->bi_vcnt != 1); diff --git a/fs/exec.c b/fs/exec.c index 4e834f16d9d..ec5df9a3831 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1159,6 +1159,7 @@ EXPORT_SYMBOL(remove_arg_zero); */ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) { + unsigned int depth = bprm->recursion_depth; int try,retval; struct linux_binfmt *fmt; #ifdef __alpha__ @@ -1219,8 +1220,15 @@ int search_binary_handler(struct linux_binprm *bprm,struct pt_regs *regs) continue; read_unlock(&binfmt_lock); retval = fn(bprm, regs); + /* + * Restore the depth counter to its starting value + * in this call, so we don't have to rely on every + * load_binary function to restore it on return. + */ + bprm->recursion_depth = depth; if (retval >= 0) { - tracehook_report_exec(fmt, bprm, regs); + if (depth == 0) + tracehook_report_exec(fmt, bprm, regs); put_binfmt(fmt); allow_write_access(bprm->file); if (bprm->file) diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c index 80246bad1b7..890e0182881 100644 --- a/fs/exportfs/expfs.c +++ b/fs/exportfs/expfs.c @@ -367,6 +367,8 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid, * Try to get any dentry for the given file handle from the filesystem. */ result = nop->fh_to_dentry(mnt->mnt_sb, fid, fh_len, fileid_type); + if (!result) + result = ERR_PTR(-ESTALE); if (IS_ERR(result)) return result; @@ -420,6 +422,8 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid, target_dir = nop->fh_to_parent(mnt->mnt_sb, fid, fh_len, fileid_type); + if (!target_dir) + goto err_result; err = PTR_ERR(target_dir); if (IS_ERR(target_dir)) goto err_result; diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c index d2003cdc36a..db35cfdb3c8 100644 --- a/fs/ext4/balloc.c +++ b/fs/ext4/balloc.c @@ -609,8 +609,8 @@ int ext4_has_free_blocks(struct ext4_sb_info *sbi, s64 nblocks) if (free_blocks - (nblocks + root_blocks + dirty_blocks) < EXT4_FREEBLOCKS_WATERMARK) { - free_blocks = percpu_counter_sum(fbc); - dirty_blocks = percpu_counter_sum(dbc); + free_blocks = percpu_counter_sum_positive(fbc); + dirty_blocks = percpu_counter_sum_positive(dbc); if (dirty_blocks < 0) { printk(KERN_CRIT "Dirty block accounting " "went wrong %lld\n", diff --git a/fs/inotify.c b/fs/inotify.c index 7bbed1b8982..dae3f28f30d 100644 --- a/fs/inotify.c +++ b/fs/inotify.c @@ -428,11 +428,13 @@ void inotify_unmount_inodes(struct list_head *list) watches = &inode->inotify_watches; list_for_each_entry_safe(watch, next_w, watches, i_list) { struct inotify_handle *ih= watch->ih; + get_inotify_watch(watch); mutex_lock(&ih->mutex); ih->in_ops->handle_event(watch, watch->wd, IN_UNMOUNT, 0, NULL, NULL); inotify_remove_watch_locked(ih, watch); mutex_unlock(&ih->mutex); + put_inotify_watch(watch); } mutex_unlock(&inode->inotify_mutex); iput(inode); diff --git a/fs/proc/base.c b/fs/proc/base.c index 486cf3fe713..d4677603c88 100644 --- a/fs/proc/base.c +++ b/fs/proc/base.c @@ -371,7 +371,7 @@ static int lstats_show_proc(struct seq_file *m, void *v) task->latency_record[i].time, task->latency_record[i].max); for (q = 0; q < LT_BACKTRACEDEPTH; q++) { - char sym[KSYM_NAME_LEN]; + char sym[KSYM_SYMBOL_LEN]; char *c; if (!task->latency_record[i].backtrace[q]) break; diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index b770c095e45..3a8bdd7f575 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -557,9 +557,9 @@ static u64 swap_pte_to_pagemap_entry(pte_t pte) return swp_type(e) | (swp_offset(e) << MAX_SWAPFILES_SHIFT); } -static unsigned long pte_to_pagemap_entry(pte_t pte) +static u64 pte_to_pagemap_entry(pte_t pte) { - unsigned long pme = 0; + u64 pme = 0; if (is_swap_pte(pte)) pme = PM_PFRAME(swap_pte_to_pagemap_entry(pte)) | PM_PSHIFT(PAGE_SHIFT) | PM_SWAP; diff --git a/fs/seq_file.c b/fs/seq_file.c index eba2eabcd2b..16c211558c2 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -357,7 +357,18 @@ int seq_printf(struct seq_file *m, const char *f, ...) } EXPORT_SYMBOL(seq_printf); -static char *mangle_path(char *s, char *p, char *esc) +/** + * mangle_path - mangle and copy path to buffer beginning + * @s: buffer start + * @p: beginning of path in above buffer + * @esc: set of characters that need escaping + * + * Copy the path from @p to @s, replacing each occurrence of character from + * @esc with usual octal escape. + * Returns pointer past last written character in @s, or NULL in case of + * failure. + */ +char *mangle_path(char *s, char *p, char *esc) { while (s <= p) { char c = *p++; @@ -376,6 +387,7 @@ static char *mangle_path(char *s, char *p, char *esc) } return NULL; } +EXPORT_SYMBOL(mangle_path); /* * return the absolute path of 'dentry' residing in mount 'mnt'. |