Mercurial > hg > nginx
annotate src/os/unix/ngx_dlopen.c @ 7669:52b34c3f89b4
Too large st_blocks values are now ignored (ticket #157).
With XFS, using "allocsize=64m" mount option results in large preallocation
being reported in the st_blocks as returned by fstat() till the file is
closed. This in turn results in incorrect cache size calculations and
wrong clearing based on max_size.
To avoid too aggressive cache clearing on such volumes, st_blocks values
which result in sizes larger than st_size and eight blocks (an arbitrary
limit) are no longer trusted, and we use st_size instead.
The ngx_de_fs_size() counterpart is intentionally not modified, as
it is used on closed files and hence not affected by this problem.
author | Maxim Dounin <mdounin@mdounin.ru> |
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date | Mon, 22 Jun 2020 18:02:59 +0300 |
parents | 7142b04337d6 |
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rev | line source |
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Dynamic modules: dlopen() support.
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1 |
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2 /* |
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3 * Copyright (C) Maxim Dounin |
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4 * Copyright (C) Nginx, Inc. |
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5 */ |
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6 |
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7 |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 |
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11 |
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12 #if (NGX_HAVE_DLOPEN) |
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13 |
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14 char * |
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15 ngx_dlerror(void) |
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16 { |
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17 char *err; |
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18 |
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19 err = (char *) dlerror(); |
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20 |
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21 if (err == NULL) { |
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22 return ""; |
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23 } |
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24 |
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25 return err; |
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26 } |
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27 |
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28 #endif |