Revision 2557a933b795c1988c721ebb871cd735128bb9cb authored by Rusty Russell on 07 April 2008, 04:30:28 UTC, committed by Linus Torvalds on 07 April 2008, 20:14:22 UTC
The 'disable_cb' callback is designed as an optimization to tell the host we don't need callbacks now. As it is not reliable, the debug check is overzealous: it can happen on two CPUs at the same time. Document this. Even if it were reliable, the virtio_net driver doesn't disable callbacks on transmit so the START_USE/END_USE debugging reentrance protection can be easily tripped even on UP. Thanks to Balaji Rao for the bug report and testing. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> CC: Balaji Rao <balajirrao@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| File | Mode | Size |
|---|---|---|
| 9p | ||
| adfs | ||
| affs | ||
| afs | ||
| autofs | ||
| autofs4 | ||
| befs | ||
| bfs | ||
| cifs | ||
| coda | ||
| configfs | ||
| cramfs | ||
| debugfs | ||
| devpts | ||
| dlm | ||
| ecryptfs | ||
| efs | ||
| exportfs | ||
| ext2 | ||
| ext3 | ||
| ext4 | ||
| fat | ||
| freevxfs | ||
| fuse | ||
| gfs2 | ||
| hfs | ||
| hfsplus | ||
| hostfs | ||
| hpfs | ||
| hppfs | ||
| hugetlbfs | ||
| isofs | ||
| jbd | ||
| jbd2 | ||
| jffs2 | ||
| jfs | ||
| lockd | ||
| minix | ||
| msdos | ||
| ncpfs | ||
| nfs | ||
| nfs_common | ||
| nfsd | ||
| nls | ||
| ntfs | ||
| ocfs2 | ||
| openpromfs | ||
| partitions | ||
| proc | ||
| qnx4 | ||
| ramfs | ||
| reiserfs | ||
| romfs | ||
| smbfs | ||
| sysfs | ||
| sysv | ||
| udf | ||
| ufs | ||
| vfat | ||
| xfs | ||
| Kconfig | -rw-r--r-- | 76.1 KB |
| Kconfig.binfmt | -rw-r--r-- | 5.4 KB |
| Makefile | -rw-r--r-- | 3.8 KB |
| aio.c | -rw-r--r-- | 45.5 KB |
| anon_inodes.c | -rw-r--r-- | 5.1 KB |
| attr.c | -rw-r--r-- | 4.7 KB |
| bad_inode.c | -rw-r--r-- | 8.1 KB |
| binfmt_aout.c | -rw-r--r-- | 15.0 KB |
| binfmt_elf.c | -rw-r--r-- | 53.9 KB |
| binfmt_elf_fdpic.c | -rw-r--r-- | 47.4 KB |
| binfmt_em86.c | -rw-r--r-- | 2.8 KB |
| binfmt_flat.c | -rw-r--r-- | 26.7 KB |
| binfmt_misc.c | -rw-r--r-- | 15.5 KB |
| binfmt_script.c | -rw-r--r-- | 2.7 KB |
| binfmt_som.c | -rw-r--r-- | 7.8 KB |
| bio.c | -rw-r--r-- | 28.3 KB |
| block_dev.c | -rw-r--r-- | 30.3 KB |
| buffer.c | -rw-r--r-- | 86.7 KB |
| char_dev.c | -rw-r--r-- | 13.2 KB |
| compat.c | -rw-r--r-- | 53.0 KB |
| compat_binfmt_elf.c | -rw-r--r-- | 3.4 KB |
| compat_ioctl.c | -rw-r--r-- | 84.3 KB |
| dcache.c | -rw-r--r-- | 55.2 KB |
| dcookies.c | -rw-r--r-- | 6.3 KB |
| direct-io.c | -rw-r--r-- | 34.2 KB |
| dnotify.c | -rw-r--r-- | 4.3 KB |
| dquot.c | -rw-r--r-- | 55.9 KB |
| drop_caches.c | -rw-r--r-- | 1.4 KB |
| eventfd.c | -rw-r--r-- | 5.1 KB |
| eventpoll.c | -rw-r--r-- | 36.6 KB |
| exec.c | -rw-r--r-- | 40.8 KB |
| fcntl.c | -rw-r--r-- | 14.3 KB |
| fifo.c | -rw-r--r-- | 3.1 KB |
| file.c | -rw-r--r-- | 6.3 KB |
| file_table.c | -rw-r--r-- | 8.8 KB |
| filesystems.c | -rw-r--r-- | 5.5 KB |
| fs-writeback.c | -rw-r--r-- | 22.3 KB |
| generic_acl.c | -rw-r--r-- | 4.2 KB |
| inode.c | -rw-r--r-- | 37.8 KB |
| inotify.c | -rw-r--r-- | 20.2 KB |
| inotify_user.c | -rw-r--r-- | 18.3 KB |
| internal.h | -rw-r--r-- | 934 bytes |
| ioctl.c | -rw-r--r-- | 4.5 KB |
| ioprio.c | -rw-r--r-- | 5.0 KB |
| libfs.c | -rw-r--r-- | 19.5 KB |
| locks.c | -rw-r--r-- | 57.1 KB |
| mbcache.c | -rw-r--r-- | 18.3 KB |
| mpage.c | -rw-r--r-- | 19.9 KB |
| namei.c | -rw-r--r-- | 69.4 KB |
| namespace.c | -rw-r--r-- | 47.1 KB |
| nfsctl.c | -rw-r--r-- | 2.4 KB |
| no-block.c | -rw-r--r-- | 663 bytes |
| open.c | -rw-r--r-- | 26.5 KB |
| pipe.c | -rw-r--r-- | 24.4 KB |
| pnode.c | -rw-r--r-- | 7.7 KB |
| pnode.h | -rw-r--r-- | 1.0 KB |
| posix_acl.c | -rw-r--r-- | 8.5 KB |
| quota.c | -rw-r--r-- | 12.2 KB |
| quota_v1.c | -rw-r--r-- | 5.7 KB |
| quota_v2.c | -rw-r--r-- | 20.1 KB |
| read_write.c | -rw-r--r-- | 17.6 KB |
| read_write.h | -rw-r--r-- | 542 bytes |
| readdir.c | -rw-r--r-- | 6.8 KB |
| select.c | -rw-r--r-- | 20.8 KB |
| seq_file.c | -rw-r--r-- | 10.8 KB |
| signalfd.c | -rw-r--r-- | 6.6 KB |
| splice.c | -rw-r--r-- | 39.8 KB |
| stack.c | -rw-r--r-- | 1.1 KB |
| stat.c | -rw-r--r-- | 10.6 KB |
| super.c | -rw-r--r-- | 22.1 KB |
| sync.c | -rw-r--r-- | 7.0 KB |
| timerfd.c | -rw-r--r-- | 6.7 KB |
| utimes.c | -rw-r--r-- | 5.1 KB |
| xattr.c | -rw-r--r-- | 14.4 KB |
| xattr_acl.c | -rw-r--r-- | 2.3 KB |
Computing file changes ...
