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authorAl Viro <viro@zeniv.linux.org.uk>2015-04-06 17:48:54 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2015-04-06 17:50:59 -0400
commitb2edffdd912b4205899a8efa0974dfbbc3216109 (patch)
tree64f8f993ab48978b5a3a13912bba685d48b1a04e /include
parent8f778bbc542ddf8f6243b21d6aca087e709cabdc (diff)
fix mremap() vs. ioctx_kill() race
teach ->mremap() method to return an error and have it fail for aio mappings in process of being killed Note that in case of ->mremap() failure we need to undo move_page_tables() we'd already done; we could call ->mremap() first, but then the failure of move_page_tables() would require undoing whatever _successful_ ->mremap() has done, which would be a lot more headache in general. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index f4131e8ead74..52cc4492cb3a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1549,7 +1549,7 @@ struct file_operations {
long (*unlocked_ioctl) (struct file *, unsigned int, unsigned long);
long (*compat_ioctl) (struct file *, unsigned int, unsigned long);
int (*mmap) (struct file *, struct vm_area_struct *);
- void (*mremap)(struct file *, struct vm_area_struct *);
+ int (*mremap)(struct file *, struct vm_area_struct *);
int (*open) (struct inode *, struct file *);
int (*flush) (struct file *, fl_owner_t id);
int (*release) (struct inode *, struct file *);