- 03 1月, 2009 12 次提交
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由 Sukadev Bhattiprolu 提交于
Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sukadev Bhattiprolu 提交于
Move code to parse mount options into a separate function so it can (later) be shared between mount and remount operations. Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sukadev Bhattiprolu 提交于
With support for multiple mounts of devpts, the 'config' structure really represents per-mount options rather than config parameters. Rename 'config' structure to 'pts_mount_opts' and store it in the super-block. Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sukadev Bhattiprolu 提交于
To enable multiple mounts of devpts, 'allocated_ptys' must be a per-mount variable rather than a global variable. Move 'allocated_ptys' into the super_block's s_fs_info. Changelog[v2]: Define and use DEVPTS_SB() wrapper. Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sukadev Bhattiprolu 提交于
Remove the 'devpts_root' global variable and find the root dentry using the super_block. The super-block can be found from the device inode, using the new wrapper, pts_sb_from_inode(). Changelog: This patch is based on an earlier patchset from Serge Hallyn and Matt Helsley. Signed-off-by: NSukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Alan Cox 提交于
Now the main work is done its polishing time Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Joe Peterson 提交于
Fixes the loss of echoed (and other ldisc-generated characters) when the tty is stopped or when the driver output buffer is full (happens frequently for input during continuous program output, such as ^C) and removes the Big Kernel Lock from the N_TTY line discipline. Adds an "echo buffer" to the N_TTY line discipline that handles all ldisc-generated output (including echoed characters). Along with the loss of characters, this also fixes the associated loss of sync between tty output and the ldisc state when characters cannot be immediately written to the tty driver. The echo buffer stores (in addition to characters) state operations that need to be done at the time of character output (like management of the column position). This allows echo to cooperate correctly with program output, since the ldisc state remains consistent with actual characters written. Since the echo buffer code now isolates the tty column state code to the process_out* and process_echoes functions, we can remove the Big Kernel Lock (BKL) and replace it with mutex locks. Highlights are: * Handles echo (and other ldisc output) when tty driver buffer is full - continuous program output can block echo * Saves echo when tty is in stopped state (e.g. ^S) - (e.g.: ^Q will correctly cause held characters to be released for output) * Control character pairs (e.g. "^C") are treated atomically and not split up by interleaved program output * Line discipline state is kept consistent with characters sent to the tty driver * Remove the big kernel lock (BKL) from N_TTY line discipline Signed-off-by: NJoe Peterson <joe@skyrush.com> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sonic Zhang 提交于
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sonic Zhang 提交于
Add spin_lock_irqsave() when receive and transfer data. Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sonic Zhang 提交于
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Graf Yang 提交于
Bug description: The IRDA receiver may can't receiving any more after processed some signals. To duplicate this issue is put three IRDA devices together, one blackfin, two none blackfin, they will detect each other. Let one none blackfin devices irdaping the blackfin devices, when it stopped print out ping information, it is the time that blackfin stoped receiving, the time is random. The related register bit is OK, the other devices is sending data continuously. But no interrupt come. Fixing: I tried Michael's suggestion that request the UARTx error interrupt, and reset the IRDA when found FE error. This method helps much, but it can't completely avoid stop. Reset the IRDA before every time sending the data is more safe. Signed-off-by: NGraf Yang <graf.yang@analog.com> Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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由 Sonic Zhang 提交于
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com> Signed-off-by: NBryan Wu <cooloney@kernel.org> Signed-off-by: NAlan Cox <alan@redhat.com> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 01 1月, 2009 28 次提交
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6由 Linus Torvalds 提交于
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (34 commits) nfsd race fixes: jfs nfsd race fixes: reiserfs nfsd race fixes: ext4 nfsd race fixes: ext3 nfsd race fixes: ext2 nfsd/create race fixes, infrastructure filesystem notification: create fs/notify to contain all fs notification fs/block_dev.c: __read_mostly improvement and sb_is_blkdev_sb utilization kill ->dir_notify() filp_cachep can be static in fs/file_table.c fix f_count description in Documentation/filesystems/files.txt make INIT_FS use the __RW_LOCK_UNLOCKED initialization take init_fs to saner place kill vfs_permission pass a struct path * to may_open kill walk_init_root remove incorrect comment in inode_permission expand some comments (d_path / seq_path) correct wrong function name of d_put in kernel document and source comment fix switch_names() breakage in short-to-short case ...
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由 Dave Kleikamp 提交于
jfs version of Al Viro's nfsd race patches Signed-off-by: NDave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
... and the same for reiserfs. The difference here is that we need insert_inode_locked4() to match iget5_locked(). Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
ext3 analog of the previous patch Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
* make ext2_new_inode() put the inode into icache in locked state * do not unlock until the inode is fully set up; otherwise nfsd might pick it in half-baked state. * make sure that ext2_new_inode() does *not* lead to two inodes with the same inumber hashed at the same time; otherwise a bogus fhandle coming from nfsd might race with inode creation: nfsd: iget_locked() creates inode nfsd: try to read from disk, block on that. ext2_new_inode(): allocate inode with that inumber ext2_new_inode(): insert it into icache, set it up and dirty ext2_write_inode(): get the relevant part of inode table in cache, set the entry for our inode (and start writing to disk) nfsd: get CPU again, look into inode table, see nice and sane on-disk inode, set the in-core inode from it oops - we have two in-core inodes with the same inumber live in icache, both used for IO. Welcome to fs corruption... Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
new helpers - insert_inode_locked() and insert_inode_locked4(). Hash new inode, making sure that there's no such inode in icache already. If there is and it does not end up unhashed (as would happen if we have nfsd trying to resolve a bogus fhandle), fail. Otherwise insert our inode into hash and succeed. In either case have i_state set to new+locked; cleanup ends up being simpler with such calling conventions. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Eric Paris 提交于
Creating a generic filesystem notification interface, fsnotify, which will be used by inotify, dnotify, and eventually fanotify is really starting to clutter the fs directory. This patch simply moves inotify and dnotify into fs/notify/inotify and fs/notify/dnotify respectively to make both current fs/ and future notification tidier. Signed-off-by: NEric Paris <eparis@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Denis ChengRq 提交于
- iget5_locked in bdget really needs blockdev_superblock, instead of bd_mnt, so bd_mnt could be just a local variable; - blockdev_superblock really needs __read_mostly, while local var bd_mnt not; - make use of sb_is_blkdev_sb in bd_forget, instead of direct reference to blockdev_superblock. Signed-off-by: NDenis ChengRq <crquan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Remove the hopelessly misguided ->dir_notify(). The only instance (cifs) has been broken by design from the very beginning; the objects it creates are never destroyed, keep references to struct file they can outlive, nothing that could possibly evict them exists on close(2) path *and* no locking whatsoever is done to prevent races with close(), should the previous, er, deficiencies someday be dealt with. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Eric Dumazet 提交于
Instead of creating the "filp" kmem_cache in vfs_caches_init(), we can do it a litle be later in files_init(), so that filp_cachep is static to fs/file_table.c Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: NEric Dumazet <dada1@cosmosbay.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Eric Dumazet 提交于
Documentation/filesystems/files.txt was not updated when f_count became an atomic_long_t. atomic_long_inc_not_zero() is now used instead of atomic_inc_not_zero() Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Steven Rostedt 提交于
[AV: rediffed on top of unification of init_fs] Initialization of init_fs still uses the deprecated RW_LOCK_UNLOCKED macro. This patch updates it to use the __RW_LOCK_UNLOCKED(lock) macro. Signed-off-by: NSteven Rostedt <srostedt@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Christoph Hellwig 提交于
With all the nameidata removal there's no point anymore for this helper. Of the three callers left two will go away with the next lookup series anyway. Also add proper kerneldoc to inode_permission as this is the main permission check routine now. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Christoph Hellwig 提交于
No need for the nameidata in may_open - a struct path is enough. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Christoph Hellwig 提交于
walk_init_root is a tiny helper that is marked __always_inline, has just one caller and an unused argument. Just merge it into the caller. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Christoph Hellwig 提交于
We now pass on all MAY_ flags to the filesystems permission routines, so remove the comment stating the contrary. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Arjan van de Ven 提交于
Explain that you really need to use the return value of d_path rather than the buffer you passed into it. Also fix the comment for seq_path(), the function arguments changed recently but the comment hadn't been updated in sync. Signed-off-by: NArjan van de Ven <arjan@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Zhaolei 提交于
no function named d_put(), it should be dput(). Impact: fix document and comment, no functionality changed Signed-off-by: NZhao Lei <zhaolei@cn.fuijtsu.com> Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
We want ->name.len to match the resulting name on *both* source and target Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Sergey S. Kostyliov <rathamahata@php4.ru> Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Theodore Ts'o <tytso@mit.edu> Cc: adilger@sun.com Cc: linux-ext4@vger.kernel.org Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Stephen Tweedie <sct@redhat.com> Cc: linux-ext4@vger.kernel.org Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Duane Griffin 提交于
On-disk data corruption could cause a page link to have its i_size set to PAGE_SIZE (or a multiple thereof) and its contents all non-NUL. NUL-terminate the link name to ensure this doesn't cause further problems for the kernel. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: NDuane Griffin <duaneg@dghda.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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