- 06 Jan, 2006 40 commits
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Miklos Szeredi authored
Previously invalid types were quietly changed to regular files, but at revalidation the inode was changed to bad. This was rather inconsistent behavior. Now check if the type is valid on initial lookup, and return -EIO if not. Signed-off-by:
Miklos Szeredi <miklos@szeredi.hu> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Miklos Szeredi authored
In direct_io mode, send at least one page per reqest. Previously it was possible that reqests with zero data were sent, and hence the read/write didn't make any progress, resulting in an infinite (though interruptible) loop. Signed-off-by:
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Miklos Szeredi authored
Make the maximum size of write data configurable by the filesystem. The previous fixed 4096 limit only worked on architectures where the page size is less or equal to this. This change make writing work on other architectures too, and also lets the filesystem receive bigger write requests in direct_io mode. Normal writes which go through the page cache are still limited to a page sized chunk per request. Signed-off-by:
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Miklos Szeredi authored
Change the way a too large request is handled. Until now in this case the device read returned -EINVAL and the operation returned -EIO. Make it more flexibible by not returning -EINVAL from the read, but restarting it instead. Also remove the fixed limit on setxattr data and let the filesystem provide as large a read buffer as it needs to handle the extended attribute data. The symbolic link length is already checked by VFS to be less than PATH_MAX, so the extra check against FUSE_SYMLINK_MAX is not needed. The check in fuse_create_open() against FUSE_NAME_MAX is not needed, since the dentry has already been looked up, and hence the name already checked. Signed-off-by:
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Miklos Szeredi authored
Make file operations on a bad inode fail. This just makes things a bit more consistent. Signed-off-by:
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Miklos Szeredi authored
Document some not-so-trivial functions. Signed-off-by:
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Miklos Szeredi authored
Add support for caching negative dentries. Up till now, ->d_revalidate() always forced a new lookup on these. Now let the lookup method return a zero node ID (not used for anything else) meaning a negative entry, but with a positive cache timeout. The old way of signaling negative entry (replying ENOENT) still works. Userspace should check the ABI minor version to see whether sending a zero ID is allowed by the kernel or not. Signed-off-by:
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Miklos Szeredi authored
Add 'frsize' member to the statfs reply. I'm not sure if sending f_fsid will ever be needed, but just in case leave some space at the end of the structure, so less compatibility mess would be required. Signed-off-by:
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Miklos Szeredi authored
Change interface version to 7.4. Following changes will need backward compatibility support, so store the minor version returned by userspace. Signed-off-by:
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Miklos Szeredi authored
Use page_offset() instead of doing page offset calculation by hand. Signed-off-by:
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Miklos Szeredi authored
Simplify fuse_lookup() and related functions. Signed-off-by:
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Markus Lidel authored
Signed-off-by:
Markus Lidel <Markus.Lidel@shadowconnect.com> Signed-off-by:
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Markus Lidel authored
- make i2o_iop_free() static inline (from Adrian Bunk) - changed kmalloc() + memset(0) into kzalloc() Signed-off-by:
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Markus Lidel authored
Fix some typos and minor code beautifying. Signed-off-by:
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Markus Lidel authored
- Removed some kmalloc's with __GFP_ZERO and replace it with memset() because it didn't work properly. - Fixed returned message frame in i2o_cfg_passthru() which caused raidutils to display wrong error message in case a disk was missing. - Fixed size of printk() in i2o_scsi.c. - Fixed get_device() and put_device() in probing of the I2O controller. Signed-off-by:
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Markus Lidel authored
Removed wrong I2O device class, which was only needed to add sysfs attributes. Signed-off-by:
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Markus Lidel authored
Fix lot of BE <-> LE bugs which prevent it from working on SPARC. Signed-off-by:
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Markus Lidel authored
Changed the I2O API to create I2O messages first in kernel memory and then transfer it at once over the PCI bus instead of sending each quad-word over the PCI bus. Signed-off-by:
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Martin Schwidefsky authored
Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X, ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by S390, 64BIT and COMPAT. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Peter Oberparleiter authored
When the sclp_cpi module is loaded on a system which does not support the required SCLP call (e.g. on z/VM), ENOSUPP is returned to user space. The correct return value is EOPNOTSUPP. Signed-off-by:
Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
- Use kzalloc() in blacklist.c. - Kill unwanted casts in blacklist.c. - Provide release function for struct channel_subsystem. Signed-off-by:
Cornelia Huck <huckc@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Eric Rossman authored
Signed-off-by:
Eric Rossman <edrossma@us.ibm.com> Signed-off-by:
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Cornelia Huck authored
Add support for multiple subchannel sets. Works with arbitrary devices in subchannel set 1 and is transparent to device drivers. Although currently only two subchannel sets are available, this will work with the architectured maximum number of subchannel sets as well. Signed-off-by:
Cornelia Huck <cohuck@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
Convert /proc/cio_ignore to a sequential file. This makes multiple subchannel sets support easier. Signed-off-by:
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Cornelia Huck authored
struct channel_subsystem encapsulates several per channel subsystem properties, like status of chpids or the global path group id. Signed-off-by:
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Cornelia Huck authored
for_each_subchannel() is an iterator calling a function for every possible subchannel id until non-zero is returned. Convert the current iterating functions to it. Signed-off-by:
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Cornelia Huck authored
This patch introduces a struct subchannel_id containing the subchannel number (formerly referred to as "irq") and switches code formerly relying on the subchannel number over to it. While we're touching inline assemblies anyway, make sure they have correct memory constraints. Signed-off-by:
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Frank Pavlic authored
New feature V=V qdio pass-through. QDIO and HiperSockets processing in z/VM V=V guest environments (as well as V=R with z/VM running in LPAR mode) requires shadowing of all QDIO architecture queue elements. Especially the shadowing of SBALs and SLSBs structures in the hypervisor, and the need to issue SIGA SYNC operations to observe state changes, eventually causes significant CPU processing overhead in the hypervisor. The QDIO pass-through support for V=V guests avoids the shadowing of SBALs and SLSBs. This significantly reduces the hypervisor overhead for QDIO based I/O. Signed-off-by:
Frank Pavlic <pavlic@de.ibm.com> Signed-off-by:
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Jan Glauber authored
Add new test vectors to the AES test suite for AES CBC and AES with plaintext larger than AES blocksize. Signed-off-by:
Jan Glauber <jan.glauber@de.ibm.com> Signed-off-by:
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Jan Glauber authored
Add support for the hardware accelerated AES crypto algorithm. Signed-off-by:
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Jan Glauber authored
Add support for the hardware accelerated sha256 crypto algorithm. Signed-off-by:
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Jan Glauber authored
Replace all references to z990 by s390 in the in-kernel crypto files in arch/s390/crypto. The code is not specific to a particular machine (z990) but to the s390 platform. Big diff, does nothing.. Signed-off-by:
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Andreas Krebbel authored
Signed-off-by:
Andreas Krebbel <krebbel1@de.ibm.com> Signed-off-by:
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Horst Hummel authored
To properly support multipath-failover handling, the linux block layer has introduced a special request flag, 'REQ_FAILFAST'. This flag is now used to return requests immediately in case the device is not operational. Signed-off-by:
Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by:
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Horst Hummel authored
The IOCTL BIODASDPRRD had no return code for 'profiling is inactive' and therefore tunedasd wrote misleading message for request-counter = 0. Introduce return-code EIO for inactive profiling. Signed-off-by:
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Carsten Otte authored
Extract the s390_root_dev_* functions from the common I/O layer as they are also used by non-ccw device drivers. Signed-off-by:
Carsten Otte <cotte@de.ibm.com> Signed-off-by:
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Cornelia Huck authored
If we receive path not operational indications (pnom in pmcw nonzero), we switch off those paths. To catch them becoming available again, we have to recalculate the lpm from the pmcw each time we start path verification. Signed-off-by:
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Martin Schwidefsky authored
There are some more places where the use of cputime_t instead of an integer type and the associated macros is necessary for the virtual cputime accounting on s390. Affected are the s390 specific appldata code and BSD process accounting. Signed-off-by:
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Martin Schwidefsky authored
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Cedric Le Goater authored
Check return code of do_sigaltstack and force a SIGSEGV if it is -EFAULT. Signed-off-by:
Cedric Le Goater <clg@fr.ibm.com> Signed-off-by:
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