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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-04 13:29:38 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-04 13:29:38 -0700 |
| commit | bd932ae1bd655979d0d765108721951051f0837d (patch) | |
| tree | ec8ba10a8f6b02770a81587eb63f0560d19bd782 /kernel | |
| parent | 150a8dcf109f68f322bf112c7604f2d950303f00 (diff) | |
| parent | 4fe56e80825b47083100b2a98843df98fc7d4f07 (diff) | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull second round of VFS updates from Al Viro:
"Assorted fixes"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
xtensa simdisk: fix braino in "xtensa simdisk: switch to proc_create_data()"
hostfs: use kmalloc instead of kzalloc
hostfs: move HOSTFS_SUPER_MAGIC to <linux/magic.h>
hostfs: remove "will unlock" comment
vfs: use list_move instead of list_del/list_add
proc_devtree: Replace include linux/module.h with linux/export.h
create_mnt_ns: unidiomatic use of list_add()
fs: remove dentry_lru_prune()
Removed unused typedef to avoid "unused local typedef" warnings.
kill fs/read_write.h
fs: Fix hang with BSD accounting on frozen filesystem
sun3_scsi: add ->show_info()
nubus: Kill nubus_proc_detach_device()
more mode_t whack-a-mole...
do_coredump(): don't wait for thaw if coredump has already been interrupted
do_mount(): fix a leak introduced in 3.9 ("mount: consolidate permission checks")
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/acct.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/kernel/acct.c b/kernel/acct.c index 85389fe2abd..8d6e145138b 100644 --- a/kernel/acct.c +++ b/kernel/acct.c @@ -540,10 +540,15 @@ static void do_acct_process(struct bsd_acct_struct *acct, ac.ac_swaps = encode_comp_t(0); /* + * Get freeze protection. If the fs is frozen, just skip the write + * as we could deadlock the system otherwise. + */ + if (!file_start_write_trylock(file)) + goto out; + /* * Kernel segment override to datasegment and write it * to the accounting file. */ - file_start_write(file); fs = get_fs(); set_fs(KERNEL_DS); /* |