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| author | Nick Piggin <npiggin@kernel.dk> | 2010-08-18 04:37:35 +1000 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2010-08-18 08:35:47 -0400 |
| commit | ee2ffa0dfdd2db19705f2ba1c6a4c0bfe8122dd8 (patch) | |
| tree | e48400d1a33f8d2e68589ccfd61637aa64462f08 /include/linux/tty.h | |
| parent | b04f784e5d19ed58892833dae845738972cea260 (diff) | |
| download | linux-3.10-ee2ffa0dfdd2db19705f2ba1c6a4c0bfe8122dd8.tar.gz linux-3.10-ee2ffa0dfdd2db19705f2ba1c6a4c0bfe8122dd8.tar.bz2 linux-3.10-ee2ffa0dfdd2db19705f2ba1c6a4c0bfe8122dd8.zip | |
fs: cleanup files_lock locking
fs: cleanup files_lock locking
Lock tty_files with a new spinlock, tty_files_lock; provide helpers to
manipulate the per-sb files list; unexport the files_lock spinlock.
Cc: linux-kernel@vger.kernel.org
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Nick Piggin <npiggin@kernel.dk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/tty.h')
| -rw-r--r-- | include/linux/tty.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/tty.h b/include/linux/tty.h index 1437da3ddc6..f6b371a2514 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -470,6 +470,7 @@ extern struct tty_struct *tty_pair_get_tty(struct tty_struct *tty); extern struct tty_struct *tty_pair_get_pty(struct tty_struct *tty); extern struct mutex tty_mutex; +extern spinlock_t tty_files_lock; extern void tty_write_unlock(struct tty_struct *tty); extern int tty_write_lock(struct tty_struct *tty, int ndelay); |