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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 /drivers/hwmon
parentaa26690fab1380735442e027ce4b17849a24493f (diff)
parent438ab720c675a16d53bb18f76a94d25bbe420c45 (diff)
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 'drivers/hwmon')
-rw-r--r--drivers/hwmon/fschmd.c2
-rw-r--r--drivers/hwmon/w83793.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c
index 042a166e1858..8fb54079fac8 100644
--- a/drivers/hwmon/fschmd.c
+++ b/drivers/hwmon/fschmd.c
@@ -837,7 +837,7 @@ static int watchdog_open(struct inode *inode, struct file *filp)
watchdog_trigger(data);
filp->private_data = data;
- return nonseekable_open(inode, filp);
+ return stream_open(inode, filp);
}
static int watchdog_release(struct inode *inode, struct file *filp)
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index 0af0f6283b35..e94ae1bb3cf0 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -1341,7 +1341,7 @@ static int watchdog_open(struct inode *inode, struct file *filp)
/* Store pointer to data into filp's private data */
filp->private_data = data;
- return nonseekable_open(inode, filp);
+ return stream_open(inode, filp);
}
static int watchdog_close(struct inode *inode, struct file *filp)