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linux/fs/afs
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David Howells 1f0fc3374f afs: Give an afs_server object a ref on the afs_cell object it points to 
Give an afs_server object a ref on the afs_cell object it points to so that
the cell doesn't get deleted before the server record.

Whilst this is circular (cell -> vol -> server_list -> server -> cell), the
ref only pins the memory, not the lifetime as that's controlled by the
activity counter.  When the volume's activity counter reaches 0, it
detaches from the cell and discards its server list; when a cell's activity
counter reaches 0, it discards its root volume.  At that point, the
circularity is cut.

Fixes: d2ddc776a4 ("afs: Overhaul volume and server record caching and fileserver rotation")
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: Simon Horman <horms@kernel.org>
cc: linux-afs@lists.infradead.org
Link: https://patch.msgid.link/20250218192250.296870-6-dhowells@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2025-02-21 15:06:29 -08:00
..
addr_list.c afs: Remove the unimplemented afs_cmp_addr_list() 2024-01-01 16:37:26 +00:00
addr_prefs.c afs: Fix merge preference rule failure condition 2025-01-09 17:21:41 +01:00
afs.h afs: Fix the maximum cell name length 2025-01-07 15:55:25 +01:00
afs_cm.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs_fs.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
afs_vl.h afs: Fix the maximum cell name length 2025-01-07 15:55:25 +01:00
callback.c afs: Add more tracepoints to do with tracking validity 2024-12-20 22:34:06 +01:00
cell.c afs: Add rootcell checks 2025-01-10 14:54:07 +01:00
cmservice.c rxrpc, afs: Allow afs to pin rxrpc_peer objects 2023-12-24 15:22:50 +00:00
dir.c Provide stable parent and name to ->d_revalidate() instances 2025-01-30 09:13:35 -08:00
dir_edit.c afs: Use the contained hashtable to search a directory 2024-12-20 22:34:09 +01:00
dir_search.c afs: Use the contained hashtable to search a directory 2024-12-20 22:34:09 +01:00
dir_silly.c afs: Simplify error handling 2023-12-24 15:22:53 +00:00
dynroot.c afs: Make /afs/@cell and /afs/.@cell symlinks 2025-01-10 14:54:08 +01:00
file.c afs: Add a tracepoint for afs_read_receive() 2024-12-20 22:34:09 +01:00
flock.c afs: adapt to breakup of struct file_lock 2024-02-05 13:11:42 +01:00
fs_operation.c afs: Make {Y,}FS.FetchData an asynchronous operation 2024-12-20 22:34:08 +01:00
fs_probe.c afs: Fix possible infinite loop with unresponsive servers 2024-09-27 18:29:19 +02:00
fsclient.c afs: Make {Y,}FS.FetchData an asynchronous operation 2024-12-20 22:34:08 +01:00
inode.c afs: Locally initialise the contents of a new symlink on creation 2024-12-20 22:34:09 +01:00
internal.h afs: Locally initialise the contents of a new symlink on creation 2024-12-20 22:34:09 +01:00
Kconfig afs: Convert afs to use the new fscache API 2022-01-07 13:44:47 +00:00
main.c afs: Make {Y,}FS.FetchData an asynchronous operation 2024-12-20 22:34:08 +01:00
Makefile afs: Use the contained hashtable to search a directory 2024-12-20 22:34:09 +01:00
misc.c afs: Simplify error handling 2023-12-24 15:22:53 +00:00
mntpt.c afs: Use netfslib for symlinks, allowing them to be cached 2024-12-20 22:34:07 +01:00
proc.c afs: Add rootcell checks 2025-01-10 14:54:07 +01:00
protocol_afs.h afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server 2021-09-13 09:14:21 +01:00
protocol_uae.h afs: Add support for the UAE error table 2019-06-28 18:37:53 +01:00
protocol_yfs.h afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server 2021-09-13 09:14:21 +01:00
rotate.c afs: Add more tracepoints to do with tracking validity 2024-12-20 22:34:06 +01:00
rxrpc.c afs: Make {Y,}FS.FetchData an asynchronous operation 2024-12-20 22:34:08 +01:00
security.c fs: port ->permission() to pass mnt_idmap 2023-01-19 09:24:28 +01:00
server.c afs: Give an afs_server object a ref on the afs_cell object it points to 2025-02-21 15:06:29 -08:00
server_list.c afs: Fix the server_list to unuse a displaced server rather than putting it 2025-02-21 15:06:29 -08:00
super.c afs: Use netfslib for directories 2024-12-20 22:34:07 +01:00
validation.c afs: Add more tracepoints to do with tracking validity 2024-12-20 22:34:06 +01:00
vl_alias.c afs: Fix the maximum cell name length 2025-01-07 15:55:25 +01:00
vl_list.c afs: Dispatch vlserver probes in priority order 2024-01-01 16:37:27 +00:00
vl_probe.c afs: Keep a record of the current fileserver endpoint state 2024-01-01 16:37:27 +00:00
vl_rotate.c afs: Add some more info to /proc/net/afs/servers 2024-01-01 16:36:58 +00:00
vlclient.c vfs-6.14-rc1.netfs 2025-01-20 09:29:11 -08:00
volume.c afs: Increase buffer size in afs_update_volume_status() 2024-02-20 09:51:21 +01:00
write.c afs: Make {Y,}FS.FetchData an asynchronous operation 2024-12-20 22:34:08 +01:00
xattr.c afs: Add __counted_by for struct afs_acl and use struct_size() 2023-12-01 09:51:43 -08:00
xdr_fs.h afs: Fix directory format encoding struct 2024-12-20 22:34:04 +01:00
yfsclient.c vfs-6.14-rc1.afs 2025-01-20 11:40:48 -08:00