kernel/git/stable/linux.git/fs/exofs/exofs.h, branch master

scsi: fs: remove exofs

2019-02-06T02:28:13+00:00

This was an example for using the SCSI OSD protocol, which we're trying to remove. Signed-off-by: Christoph Hellwig Reviewed-by: Jens Axboe Signed-off-by: Martin K. Petersen

exofs: Convert to separately allocated bdi

2017-04-20T18:09:55+00:00

Allocate struct backing_dev_info separately instead of embedding it inside the superblock. This unifies handling of bdi among users. CC: Boaz Harrosh CC: Benny Halevy Acked-by: Boaz Harrosh Reviewed-by: Christoph Hellwig Signed-off-by: Jan Kara Signed-off-by: Jens Axboe

exofs: switch to {simple,page}_symlink_inode_operations

2015-05-11T02:18:27+00:00

ACK-by: Boaz Harrosh Signed-off-by: Al Viro

Boaz Harrosh - Fix broken email address

2014-10-19T17:22:32+00:00

I no longer have access to the Panasas email. So change to an email that can always reach me. Signed-off-by: Boaz Harrosh

exofs: Add SYSFS info for autologin/pNFS export

2012-05-21T09:24:01+00:00

Introduce sysfs infrastructure for exofs cluster filesystem. Each OSD target shows up as below in the sysfs hierarchy: /sys/fs/exofs/_/devX Where _ is the unique identification of a Superblock. Where devX: 0 <= X < device_table_size. They are ordered in device-table order as specified to the mkfs.exofs command Each OSD device devX has following attributes : osdname - ReadOnly systemid - ReadOnly uri - Read/Write It is up to user-mode to update devX/uri for support of autologin. These sysfs information are used both for autologin as well as support for exporting exofs via a pNFSD server in user-mode. (.eg NFS-Ganesha) Signed-off-by: Sachin Bhamare Signed-off-by: Boaz Harrosh

exofs: propagate umode_t

2012-01-04T03:55:05+00:00

Signed-off-by: Al Viro

ore: Support for partial component table

2011-10-14T16:54:41+00:00

Users like the objlayout-driver would like to only pass a partial device table that covers the IO in question. For example exofs divides the file into raid-group-sized chunks and only serves group_width number of devices at a time. The partiality is communicated by setting ore_componets->first_dev and the array covers all logical devices from oc->first_dev upto (oc->first_dev + oc->numdevs) The ore_comp_dev() API receives a logical device index and returns the actual present device in the table. An out-of-range dev_index will BUG. Logical device index is the theoretical device index as if all the devices of a file are present. .i.e: total_devs = group_width * mirror_p1 * group_count 0 <= dev_index < total_devs Signed-off-by: Boaz Harrosh

ore/exofs: Change the type of the devices array (API change)

2011-10-04T10:13:59+00:00

In the pNFS obj-LD the device table at the layout level needs to point to a device_cache node, where it is possible and likely that many layouts will point to the same device-nodes. In Exofs we have a more orderly structure where we have a single array of devices that repeats twice for a round-robin view of the device table This patch moves to a model that can be used by the pNFS obj-LD where struct ore_components holds an array of ore_dev-pointers. (ore_dev is newly defined and contains a struct osd_dev *od member) Each pointer in the array of pointers will point to a bigger user-defined dev_struct. That can be accessed by use of the container_of macro. In Exofs an __alloc_dev_table() function allocates the ore_dev-pointers array as well as an exofs_dev array, in one allocation and does the addresses dance to set everything pointing correctly. It still keeps the double allocation trick for the inodes round-robin view of the table. The device table is always allocated dynamically, also for the single device case. So it is unconditionally freed at umount. Signed-off-by: Boaz Harrosh

exofs: Remove unused data_map member from exofs_sb_info

2011-10-03T15:07:51+00:00

The struct pnfs_osd_data_map data_map member of exofs_sb_info was never used after mount. In fact all it's members were duplicated by the ore_layout structure. So just remove the duplicated information. Also removed some stupid, but perfectly supported, restrictions on layout parameters. The case where num_devices is not divisible by mirror_count+1 is perfectly fine since the rotating device view will eventually use all the devices it can get. Signed-off-by: Boaz Harrosh Signed-off-by: Benny Halevy

exofs: Rename struct ore_components comps => oc

2011-10-03T15:07:50+00:00

ore_components already has a comps member so this leads to things like comps->comps which is annoying. the name oc was already used in new code. So rename all old usage of ore_components comps => ore_components oc. Signed-off-by: Boaz Harrosh