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authorLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 12:15:13 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-05-07 12:15:13 -0700
commit41bc10cabe96bbd0ff3e2813d15f9070bff57a03 (patch)
treed75b65f4087e3ee68453c0b5d7aa5d698056c03a /sound
parentaa26690fab1380735442e027ce4b17849a24493f (diff)
parent438ab720c675a16d53bb18f76a94d25bbe420c45 (diff)
downloadlinux-41bc10cabe96bbd0ff3e2813d15f9070bff57a03.tar.bz2
Merge tag 'stream_open-5.2' of https://lab.nexedi.com/kirr/linux
Pull stream_open conversion from Kirill Smelkov: - remove unnecessary double nonseekable_open from drivers/char/dtlk.c as noticed by Pavel Machek while reviewing nonseekable_open -> stream_open mass conversion. - the mass conversion patch promised in commit 10dce8af3422 ("fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock") and is automatically generated by running $ make coccicheck MODE=patch COCCI=scripts/coccinelle/api/stream_open.cocci I've verified each generated change manually - that it is correct to convert - and each other nonseekable_open instance left - that it is either not correct to convert there, or that it is not converted due to current stream_open.cocci limitations. More details on this in the patch. - finally, change VFS to pass ppos=NULL into .read/.write for files that declare themselves streams. It was suggested by Rasmus Villemoes and makes sure that if ppos starts to be erroneously used in a stream file, such bug won't go unnoticed and will produce an oops instead of creating illusion of position change being taken into account. Note: this patch does not conflict with "fuse: Add FOPEN_STREAM to use stream_open()" that will be hopefully coming via FUSE tree, because fs/fuse/ uses new-style .read_iter/.write_iter, and for these accessors position is still passed as non-pointer kiocb.ki_pos . * tag 'stream_open-5.2' of https://lab.nexedi.com/kirr/linux: vfs: pass ppos=NULL to .read()/.write() of FMODE_STREAM files *: convert stream-like files from nonseekable_open -> stream_open dtlk: remove double call to nonseekable_open
Diffstat (limited to 'sound')
-rw-r--r--sound/core/control.c2
-rw-r--r--sound/core/rawmidi.c2
-rw-r--r--sound/core/seq/seq_clientmgr.c2
-rw-r--r--sound/core/timer.c2
4 files changed, 4 insertions, 4 deletions
diff --git a/sound/core/control.c b/sound/core/control.c
index fad7db402443..a5cc9a874062 100644
--- a/sound/core/control.c
+++ b/sound/core/control.c
@@ -54,7 +54,7 @@ static int snd_ctl_open(struct inode *inode, struct file *file)
struct snd_ctl_file *ctl;
int i, err;
- err = nonseekable_open(inode, file);
+ err = stream_open(inode, file);
if (err < 0)
return err;
diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index c0690d1ecd55..4666bb366c0c 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -382,7 +382,7 @@ static int snd_rawmidi_open(struct inode *inode, struct file *file)
if ((file->f_flags & O_APPEND) && !(file->f_flags & O_NONBLOCK))
return -EINVAL; /* invalid combination */
- err = nonseekable_open(inode, file);
+ err = stream_open(inode, file);
if (err < 0)
return err;
diff --git a/sound/core/seq/seq_clientmgr.c b/sound/core/seq/seq_clientmgr.c
index 38e7deab6384..a11bdc0350fc 100644
--- a/sound/core/seq/seq_clientmgr.c
+++ b/sound/core/seq/seq_clientmgr.c
@@ -307,7 +307,7 @@ static int snd_seq_open(struct inode *inode, struct file *file)
struct snd_seq_user_client *user;
int err;
- err = nonseekable_open(inode, file);
+ err = stream_open(inode, file);
if (err < 0)
return err;
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 61a0cec6e1f6..b842b61f66c2 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -1425,7 +1425,7 @@ static int snd_timer_user_open(struct inode *inode, struct file *file)
struct snd_timer_user *tu;
int err;
- err = nonseekable_open(inode, file);
+ err = stream_open(inode, file);
if (err < 0)
return err;