diff options
author | James Morris <jmorris@namei.org> | 2009-02-05 19:01:45 -0500 |
---|---|---|
committer | James Morris <jmorris@namei.org> | 2009-02-05 19:01:45 -0500 |
commit | cb5629b10d64a8006622ce3a52bc887d91057d69 (patch) | |
tree | 7c06d8f30783115e3384721046258ce615b129c5 /Documentation/memory-hotplug.txt | |
parent | 8920d5ad6ba74ae8ab020e90cc4d976980e68701 (diff) | |
parent | f01d1d546abb2f4028b5299092f529eefb01253a (diff) |
Merge branch 'master' into next
Conflicts:
fs/namei.c
Manually merged per:
diff --cc fs/namei.c
index 734f2b5,bbc15c2..0000000
--- a/fs/namei.c
+++ b/fs/namei.c
@@@ -860,9 -848,8 +849,10 @@@ static int __link_path_walk(const char
nd->flags |= LOOKUP_CONTINUE;
err = exec_permission_lite(inode);
if (err == -EAGAIN)
- err = vfs_permission(nd, MAY_EXEC);
+ err = inode_permission(nd->path.dentry->d_inode,
+ MAY_EXEC);
+ if (!err)
+ err = ima_path_check(&nd->path, MAY_EXEC);
if (err)
break;
@@@ -1525,14 -1506,9 +1509,14 @@@ int may_open(struct path *path, int acc
flag &= ~O_TRUNC;
}
- error = vfs_permission(nd, acc_mode);
+ error = inode_permission(inode, acc_mode);
if (error)
return error;
+
- error = ima_path_check(&nd->path,
++ error = ima_path_check(path,
+ acc_mode & (MAY_READ | MAY_WRITE | MAY_EXEC));
+ if (error)
+ return error;
/*
* An append-only file must be opened in append mode for writing.
*/
Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'Documentation/memory-hotplug.txt')
-rw-r--r-- | Documentation/memory-hotplug.txt | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/Documentation/memory-hotplug.txt b/Documentation/memory-hotplug.txt index 168117bd6ee8..4c2ecf537a4a 100644 --- a/Documentation/memory-hotplug.txt +++ b/Documentation/memory-hotplug.txt | |||
@@ -124,7 +124,7 @@ config options. | |||
124 | This option can be kernel module too. | 124 | This option can be kernel module too. |
125 | 125 | ||
126 | -------------------------------- | 126 | -------------------------------- |
127 | 3 sysfs files for memory hotplug | 127 | 4 sysfs files for memory hotplug |
128 | -------------------------------- | 128 | -------------------------------- |
129 | All sections have their device information under /sys/devices/system/memory as | 129 | All sections have their device information under /sys/devices/system/memory as |
130 | 130 | ||
@@ -138,11 +138,12 @@ For example, assume 1GiB section size. A device for a memory starting at | |||
138 | (0x100000000 / 1Gib = 4) | 138 | (0x100000000 / 1Gib = 4) |
139 | This device covers address range [0x100000000 ... 0x140000000) | 139 | This device covers address range [0x100000000 ... 0x140000000) |
140 | 140 | ||
141 | Under each section, you can see 3 files. | 141 | Under each section, you can see 4 files. |
142 | 142 | ||
143 | /sys/devices/system/memory/memoryXXX/phys_index | 143 | /sys/devices/system/memory/memoryXXX/phys_index |
144 | /sys/devices/system/memory/memoryXXX/phys_device | 144 | /sys/devices/system/memory/memoryXXX/phys_device |
145 | /sys/devices/system/memory/memoryXXX/state | 145 | /sys/devices/system/memory/memoryXXX/state |
146 | /sys/devices/system/memory/memoryXXX/removable | ||
146 | 147 | ||
147 | 'phys_index' : read-only and contains section id, same as XXX. | 148 | 'phys_index' : read-only and contains section id, same as XXX. |
148 | 'state' : read-write | 149 | 'state' : read-write |
@@ -150,10 +151,20 @@ Under each section, you can see 3 files. | |||
150 | at write: user can specify "online", "offline" command | 151 | at write: user can specify "online", "offline" command |
151 | 'phys_device': read-only: designed to show the name of physical memory device. | 152 | 'phys_device': read-only: designed to show the name of physical memory device. |
152 | This is not well implemented now. | 153 | This is not well implemented now. |
154 | 'removable' : read-only: contains an integer value indicating | ||
155 | whether the memory section is removable or not | ||
156 | removable. A value of 1 indicates that the memory | ||
157 | section is removable and a value of 0 indicates that | ||
158 | it is not removable. | ||
153 | 159 | ||
154 | NOTE: | 160 | NOTE: |
155 | These directories/files appear after physical memory hotplug phase. | 161 | These directories/files appear after physical memory hotplug phase. |
156 | 162 | ||
163 | If CONFIG_NUMA is enabled the | ||
164 | /sys/devices/system/memory/memoryXXX memory section | ||
165 | directories can also be accessed via symbolic links located in | ||
166 | the /sys/devices/system/node/node* directories. For example: | ||
167 | /sys/devices/system/node/node0/memory9 -> ../../memory/memory9 | ||
157 | 168 | ||
158 | -------------------------------- | 169 | -------------------------------- |
159 | 4. Physical memory hot-add phase | 170 | 4. Physical memory hot-add phase |
@@ -365,7 +376,6 @@ node if necessary. | |||
365 | - allowing memory hot-add to ZONE_MOVABLE. maybe we need some switch like | 376 | - allowing memory hot-add to ZONE_MOVABLE. maybe we need some switch like |
366 | sysctl or new control file. | 377 | sysctl or new control file. |
367 | - showing memory section and physical device relationship. | 378 | - showing memory section and physical device relationship. |
368 | - showing memory section and node relationship (maybe good for NUMA) | ||
369 | - showing memory section is under ZONE_MOVABLE or not | 379 | - showing memory section is under ZONE_MOVABLE or not |
370 | - test and make it better memory offlining. | 380 | - test and make it better memory offlining. |
371 | - support HugeTLB page migration and offlining. | 381 | - support HugeTLB page migration and offlining. |